Electric circuit diagram components (symbols) Symbol Component Symbol Component

Size: px
Start display at page:

Download "Electric circuit diagram components (symbols) Symbol Component Symbol Component"

Transcription

1 7. ELECTRICS 7.1. SYMBOLS Electric circuit diagram components (symbols) Symbol Component Symbol Component Symbol (plan view) Battery Biased switch. Push-to-make (PTM) M Bulb Resistor Motor Fuse Biased switch. Push-to-brake (PTB) One way switch. Single pole single throw (SPST) Changeover switch. Single pole double throw (SPDT) Intermediate switch. Double pole double throw (DPDT) Buzzer A V Ammeter Voltmeter 49

2 7.2. SWITCHES: CONTACT ARRANGEMENTS A pair of contacts is said to be 'closed' when there is no space between them, allowing electricity to flow from one to the other. When the contacts are separated by a space, they are said to be 'open', and no electricity can flow. Switches can be classified according to the arrangement of their contacts. Some contacts are normally open until closed by operation of the switch, while others are normally closed and opened by the switch action. A switch with both types of contact is called a changeover switch. The terms pole and throw are used to describe switch contacts. A pole is a set of contacts that belong to a single circuit. A throw is one of two or more positions that the switch can adopt. These terms give rise to abbreviations for the types of switch which are used in the electrics industry. Biased switches A biased switch is one containing a spring that returns the actuator to a certain position. The momentary push-button switch is a type of biased switch. The most common type is a push-to-make switch, which makes contact when the button is pressed and breaks when the button is released. A push-to-break switch, on the other hand, breaks contact when the button is pressed and makes contact when it is released OHM S LAW The Ohm s Law establish the relationship between voltage (V), current (I) and resistance (R) for any electrical circuit. V = I R Therefore: The more voltage the battery supplies, the more current flows. The less resistance the device has, the more current flows. 50

3 7.4. ELECTRICAL CIRCUITS Series circuit The name describes the method of attaching components. If the circuit elements are connected end to end, it is said that they are connected in series. A series circuit is one that has a single path for current flowing through all of its elements. R1=3 Ω R2=6 Ω bulb? Answer the question: If a bulb burns out, what happens to the light in the other Parallel circuits The name describes the method of attaching components. It is said that two circuit elements are connected in parallel if the ends of one circuit element are connected directly to the corresponding ends of the other. A parallel circuit is one that requires more than one path for current flow in order to reach all of the circuit elements. R1=6 Ω R2=3 Ω bulb? Answer the question: If a bulb burns out, what happens to the light in the other 51

4 Series-parallel combination circuit The circuit is a combination of both series and parallel connections. R1=3 Ω R2=6 Ω R3=6 Ω Short circuit When there are two branches and one of them has no resistance, all the current goes through it. R1=3 Ω R2=6 Ω So that all the current will go through the upper branch and the lamp R2 will not work. It is said that the lamp R2 is shortcircuited. When the entire branch has no resistance, that is, there is a path connecting the positive and the negative pole with no resistance in between, the current is extremely high. This is known as short circuit. The bulb will not work. The heat is extremely high (because the current is extremely high). The wire and the battery will burn out. R1=6 Ω 52

5 7.5. MULTIWAY SWITCHING Multiway switching is a method of connecting switches in groups so that any switch can be used to connect or disconnect the bulb. Two locations Switching a bulb on or off from two locations (for instance, turning a light on or off from either end of a flight of stairs) requires two SPDT switches. (draw the whole diagram adding a battery and a bulb) More than two locations For more than two locations, the two wires connecting the two SPDT switches must be passed through an intermediate switch, wired to swap them over. Any number of intermediate switches can be inserted, depending on the number of locations. (draw the whole diagram adding a battery and a bulb) 53

6 to do it. Motor control circuit for forward/reverse rotation Sometimes we need to change the rotation in a motor. There are several ways -One batteries and an intermediate switch: M -Two batteries and a changeover switch: M 7.6. VOCABULARY BUILDER Remember: This vocabulary is not to be learnt by heart. It only tries to help you to do your homework. You have to get used to using this words to explain general ideas in English. English Explanation Spanish Ampere Battery Biased switch The ampere, in practice often shortened to amp, (symbol: A) is a unit of electric current, or amount of electric charge per second. One ampere is approximately equal to electrons per second Amperio A battery is a device that stores chemical energy and makes it available in an electrical form. It has a negative pole and a positive pole Pila o batería A biased switch is one containing a spring that returns the actuator to a certain position Pulsador 54

7 English Explanation Spanish Bulb Buzzer /'bȝzə(r)/ Changeover switch Conductor Electric current (or amount of electric current) Electrical circuit Electrical wire Electron Fuse /fju:z/ Insulator The incandescent light bulb or incandescent lamp is a source of artificial light that works by incandescence. An electrical current passes through a thin filament, heating it and causing it to emit light A buzzer or beeper is a signalling device. If a button was pushed, it sounds a warning in the form of a continuous or intermittent buzzing or beeping sound. A changeover switch, more commonly called an SPDT switch, is a type of switch that can be positioned in two closed states. Conductors are materials that conduct electric current, typically, iron, aluminium, steel or copper. Electric current is the flow (movement) of electric charge. The SI unit of electric currents is the ampere (A). An electrical circuit is a network that has a closed loop, giving a return path for the current. A network is a connection of two or more components, and may not necessarily be a circuit Electrical wiring in general refers to insulated conductors used to carry electricity, and associated devices The electron is a fundamental subatomic particle that carries a negative electric charge Bombilla o lámpara Zumbador Conmutador Conductor Corriente eléctrica (o intensidad de corriente eléctrica) Circuito eléctrico Cable Electrón A fuse is a type of overcurrent protection device. It has a metal wire that will melt when heated by a high electric current, opening the circuit and protecting other devices from breaking. Fusible An insulator is a material or object which contains no free electrons to permit the flow of electricity. When a voltage is placed across an insulator, no charge/current flows. Wood, glass, ceramic or plastics are typical insulators. Aislante 55

8 English Explanation Spanish Motor Ohm Ohm's law One way switch Resistance Resistor Static electricity Volt Voltage An electric motor converts electrical energy into mechanical energy. Motor The ohm (symbol: Ω) is the SI unit of electrical resistance. Ohmio Ohm's law predicts the current in a resistor to be applied voltage divided by resistance (I=V/R); where I is the current measured in amperes, V is the potential difference in volts and R is the resistance in ohms. Ley de Ohm A switch is a device for changing the course (or flow) of a circuit. A pair of contacts is said to be 'closed' when there is no space between them, allowing electricity to flow from one to the other. Interruptor The electrical resistance of an object is a measure of its opposition to the passage of an electric current. The SI Resistencia unit of resistance is the ohm (Ω). (magnitud) A resistor is a two-terminal electrical component that resists an electric current by producing a voltage drop Resistencia o between its terminals in accordance resistor with Ohm's law. (dispositivo) Static electricity is an electrical charge caused by an imbalance of Electricidad electrons on the surface of a material. estática The volt (symbol: V) is the SI derived unit of electric potential difference. Voltio Voltage is the difference of electrical potential between two points of an electrical circuit, expressed in volts Voltaje 56

Ohm's Law and Circuits

Ohm's Law and Circuits 2. Conductance, Insulators and Resistance A. A conductor in electricity is a material that allows electrons to flow through it easily. Metals, in general, are good conductors. Why? The property of conductance

More information

Wires & Connections Component Circuit Symbol Function of Component. Power Supplies Component Circuit Symbol Function of Component

Wires & Connections Component Circuit Symbol Function of Component. Power Supplies Component Circuit Symbol Function of Component Lista Dei Simboli Dei Circuiti Per i Componenti Elettronici Wires & Connections Wire Wires joined Wires not joined To pass current very easily from one part of a circuit to another. A 'blob' should be

More information

STUDY GUIDE: ELECTRICITY AND MAGNETISM

STUDY GUIDE: ELECTRICITY AND MAGNETISM 319 S. Naperville Road Wheaton, IL 60187 www.questionsgalore.net Phone: (630) 580-5735 E-Mail: info@questionsgalore.net Fax: (630) 580-5765 STUDY GUIDE: ELECTRICITY AND MAGNETISM An atom is made of three

More information

3.- What atom s particle moves through a conductor material? 4.- Which are the electric components of an elemental electric circuit?

3.- What atom s particle moves through a conductor material? 4.- Which are the electric components of an elemental electric circuit? 1.- What is electricity? 2.- Write down the name of the atom s particles. 3.- What atom s particle moves through a conductor material? 4.- Which are the electric components of an elemental electric circuit?

More information

Objectives 200 CHAPTER 4 RESISTANCE

Objectives 200 CHAPTER 4 RESISTANCE Objectives Explain the differences among conductors, insulators, and semiconductors. Define electrical resistance. Solve problems using resistance, voltage, and current. Describe a material that obeys

More information

Student Exploration: Circuits

Student Exploration: Circuits Name: Date: Student Exploration: Circuits Vocabulary: ammeter, circuit, current, ohmmeter, Ohm s law, parallel circuit, resistance, resistor, series circuit, voltage Prior Knowledge Questions (Do these

More information

7. What is the current in a circuit if 15 coulombs of electric charge move past a given point in 3 seconds? (1) 5 A (3) 18 A (2) 12 A (4) 45 A

7. What is the current in a circuit if 15 coulombs of electric charge move past a given point in 3 seconds? (1) 5 A (3) 18 A (2) 12 A (4) 45 A 1. Compared to the number of free electrons in a conductor, the number of free electrons in an insulator of the same volume is less the same greater 2. Most metals are good electrical conductors because

More information

Resistors in Series and Parallel Circuits

Resistors in Series and Parallel Circuits 69 Resistors in Series and Parallel Circuits E&M: Series and parallel circuits Equipment List DataStudio file: Not Required Qty s Part Numbers 1 C/DC Electronics Lab EM-8656 2 D cell 1.5 volt Introduction

More information

ELECTRICAL CIRCUITS. Electrical Circuits

ELECTRICAL CIRCUITS. Electrical Circuits Electrical Circuits A complete path, or circuit, is needed before voltage can cause a current flow through resistances to perform work. There are several types of circuits, but all require the same basic

More information

Unit: Charge Differentiated Task Light it Up!

Unit: Charge Differentiated Task Light it Up! The following instructional plan is part of a GaDOE collection of Unit Frameworks, Performance Tasks, examples of Student Work, and Teacher Commentary. Many more GaDOE approved instructional plans are

More information

PS-6.2 Explain the factors that determine potential and kinetic energy and the transformation of one to the other.

PS-6.2 Explain the factors that determine potential and kinetic energy and the transformation of one to the other. PS-6.1 Explain how the law of conservation of energy applies to the transformation of various forms of energy (including mechanical energy, electrical energy, chemical energy, light energy, sound energy,

More information

Chapter 13: Electric Circuits

Chapter 13: Electric Circuits Chapter 13: Electric Circuits 1. A household circuit rated at 120 Volts is protected by a fuse rated at 15 amps. What is the maximum number of 100 watt light bulbs which can be lit simultaneously in parallel

More information

A Learning Guide for Model Rocket Launch Systems

A Learning Guide for Model Rocket Launch Systems A Learning Guide for Model Rocket Launch Systems Including: Schematics, Electrical Theory and Study Problems Edited and updated by Ann Grimm EstesEducator.com educator@estesrockets.com 800.820.0202 2012

More information

ELECTRICAL FUNDAMENTALS

ELECTRICAL FUNDAMENTALS General Electricity is a form of energy called electrical energy. It is sometimes called an "unseen" force because the energy itself cannot be seen, heard, touched, or smelled. However, the effects of

More information

PHYSICS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits

PHYSICS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits PHYSCS 111 LABORATORY Experiment #3 Current, Voltage and Resistance in Series and Parallel Circuits This experiment is designed to investigate the relationship between current and potential in simple series

More information

BUILDING A BASIC CIRCUIT

BUILDING A BASIC CIRCUIT Teacher Information BUILDING A BASIC CIRCUIT NSES9-12.2 Physical Science: Interactions of Energy and Matter Adaptations Some adaptations and modifications that may assist a student with visual and/or other

More information

Georgia Performance Standards Framework for Physical Science 8 th Grade. Powering Satellites

Georgia Performance Standards Framework for Physical Science 8 th Grade. Powering Satellites The following instructional plan is part of a GaDOE collection of Unit Frameworks, Performance Tasks, examples of Student Work, and Teacher Commentary. Many more GaDOE approved instructional plans are

More information

Series and Parallel Circuits

Series and Parallel Circuits Series and Parallel Circuits Components in a circuit can be connected in series or parallel. A series arrangement of components is where they are inline with each other, i.e. connected end-to-end. A parallel

More information

Experiment NO.3 Series and parallel connection

Experiment NO.3 Series and parallel connection Experiment NO.3 Series and parallel connection Object To study the properties of series and parallel connection. Apparatus 1. DC circuit training system 2. Set of wires. 3. DC Power supply 4. Digital A.V.O.

More information

Electrical Resistance Resistance (R)

Electrical Resistance Resistance (R) Electrical Resistance Resistance (R) Any device in a circuit which converts electrical energy into some other form impedes the current. The device which converts electrical energy to heat energy is termed

More information

Electrical Fundamentals Module 3: Parallel Circuits

Electrical Fundamentals Module 3: Parallel Circuits Electrical Fundamentals Module 3: Parallel Circuits PREPARED BY IAT Curriculum Unit August 2008 Institute of Applied Technology, 2008 ATE310- Electrical Fundamentals 2 Module 3 Parallel Circuits Module

More information

AP Physics Electricity and Magnetism #4 Electrical Circuits, Kirchoff s Rules

AP Physics Electricity and Magnetism #4 Electrical Circuits, Kirchoff s Rules Name Period AP Physics Electricity and Magnetism #4 Electrical Circuits, Kirchoff s Rules Dr. Campbell 1. Four 240 Ω light bulbs are connected in series. What is the total resistance of the circuit? What

More information

Odyssey of the Mind Technology Fair. Simple Electronics

Odyssey of the Mind Technology Fair. Simple Electronics Simple Electronics 1. Terms volts, amps, ohms, watts, positive, negative, AC, DC 2. Matching voltages a. Series vs. parallel 3. Battery capacity 4. Simple electronic circuit light bulb 5. Chose the right

More information

Introduction to Electricity & Magnetism. Dr Lisa Jardine-Wright Cavendish Laboratory

Introduction to Electricity & Magnetism. Dr Lisa Jardine-Wright Cavendish Laboratory Introduction to Electricity & Magnetism Dr Lisa Jardine-Wright Cavendish Laboratory Examples of uses of electricity Christmas lights Cars Electronic devices Human body Electricity? Electricity is the presence

More information

13.10: How Series and Parallel Circuits Differ pg. 571

13.10: How Series and Parallel Circuits Differ pg. 571 13.10: How Series and Parallel Circuits Differ pg. 571 Key Concepts: 5. Connecting loads in series and parallel affects the current, potential difference, and total resistance. - Using your knowledge of

More information

TECH TIP # 37 SOLVING SERIES/PARALLEL CIRCUITS THREE LAWS --- SERIES CIRCUITS LAW # 1 --- THE SAME CURRENT FLOWS THROUGH ALL PARTS OF THE CIRCUIT

TECH TIP # 37 SOLVING SERIES/PARALLEL CIRCUITS THREE LAWS --- SERIES CIRCUITS LAW # 1 --- THE SAME CURRENT FLOWS THROUGH ALL PARTS OF THE CIRCUIT TECH TIP # 37 SOLVING SERIES/PARALLEL CIRCUITS Please study this Tech Tip along with assignment 4 in Basic Electricity. Parallel circuits differ from series circuits in that the current divides into a

More information

Sample. What Electricity Can Do LESSON 2. Overview and Objectives. Background

Sample. What Electricity Can Do LESSON 2. Overview and Objectives. Background What Electricity Can Do Overview and Objectives Background Light bulbs are such an integral part of everyday life that most people can t imagine being without them. Because people tend to take light bulbs

More information

Circuit symbol. Each of the cells has a potential difference of 1.5 volts. Figure 1. Use the correct answer from the box to complete the sentence.

Circuit symbol. Each of the cells has a potential difference of 1.5 volts. Figure 1. Use the correct answer from the box to complete the sentence. Q.(a) Draw one line from each circuit symbol to its correct name. Circuit symbol Name Diode Light-dependent resistor (LDR) Lamp Light-emitting diode (LED) (3) Figure shows three circuits. The resistors

More information

1. The diagram below represents magnetic lines of force within a region of space.

1. The diagram below represents magnetic lines of force within a region of space. 1. The diagram below represents magnetic lines of force within a region of space. 4. In which diagram below is the magnetic flux density at point P greatest? (1) (3) (2) (4) The magnetic field is strongest

More information

Electrical Circuit Theory

Electrical Circuit Theory Electrical Circuit Theory Learning Objectives: 1. Review the basic electrical concepts of voltage, amperage, and resistance. 2. Review the components of a basic automotive electrical circuit. 3. Introduce

More information

THE BREADBOARD; DC POWER SUPPLY; RESISTANCE OF METERS; NODE VOLTAGES AND EQUIVALENT RESISTANCE; THÉVENIN EQUIVALENT CIRCUIT

THE BREADBOARD; DC POWER SUPPLY; RESISTANCE OF METERS; NODE VOLTAGES AND EQUIVALENT RESISTANCE; THÉVENIN EQUIVALENT CIRCUIT THE BREADBOARD; DC POWER SUPPLY; RESISTANCE OF METERS; NODE VOLTAGES AND EQUIVALENT RESISTANCE; THÉVENIN EQUIVALENT CIRCUIT YOUR NAME LAB MEETING TIME Reference: C.W. Alexander and M.N.O Sadiku, Fundamentals

More information

Current Electricity Lab Series/Parallel Circuits. Safety and Equipment Precautions!

Current Electricity Lab Series/Parallel Circuits. Safety and Equipment Precautions! Current Electricity Lab Series/Parallel Circuits Name Safety and Equipment Precautions! Plug in your power supply and use ONLY the D.C. terminals of the power source, NOT the A. C. terminals. DO NOT touch

More information

Lab 3 - DC Circuits and Ohm s Law

Lab 3 - DC Circuits and Ohm s Law Lab 3 DC Circuits and Ohm s Law L3-1 Name Date Partners Lab 3 - DC Circuits and Ohm s Law OBJECTIES To learn to apply the concept of potential difference (voltage) to explain the action of a battery in

More information

Circuits and the Flow of Electricity

Circuits and the Flow of Electricity Lesson Overview This lesson helps Girl Scouts learn about how electricity works within a simple circuit. Many vocabulary words must be introduced (located under things for the leader to know). This lesson

More information

Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.

Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. ch 7 and 16 review Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 1. The heat released by a burning candle

More information

101 BASICS SERIES LEARNING MODULE 2: FUNDAMENTALS OF ELECTRICITY. Cutler-Hammer

101 BASICS SERIES LEARNING MODULE 2: FUNDAMENTALS OF ELECTRICITY. Cutler-Hammer 101 BASICS SERIES LEARNING MODULE 2: FUNDAMENTALS OF ELECTRICITY Cutler-Hammer WELCOME Welcome to Module 2, Fundamentals of Electricity. This module will cover the fundamentals of electricity in a practical

More information

Chapter 5. Components, Symbols, and Circuitry of Air-Conditioning Wiring Diagrams

Chapter 5. Components, Symbols, and Circuitry of Air-Conditioning Wiring Diagrams Chapter 5 Components, Symbols, and Circuitry of Air-Conditioning Wiring Diagrams Objectives Upon completion of this course, you will be able to: Explain what electrical loads are and their general purpose

More information

= (0.400 A) (4.80 V) = 1.92 W = (0.400 A) (7.20 V) = 2.88 W

= (0.400 A) (4.80 V) = 1.92 W = (0.400 A) (7.20 V) = 2.88 W Physics 2220 Module 06 Homework 0. What are the magnitude and direction of the current in the 8 Ω resister in the figure? Assume the current is moving clockwise. Then use Kirchhoff's second rule: 3.00

More information

AP1 Electricity. 1. A student wearing shoes stands on a tile floor. The students shoes do not fall into the tile floor due to

AP1 Electricity. 1. A student wearing shoes stands on a tile floor. The students shoes do not fall into the tile floor due to 1. A student wearing shoes stands on a tile floor. The students shoes do not fall into the tile floor due to (A) a force of repulsion between the shoes and the floor due to macroscopic gravitational forces.

More information

E&I MAINTENANCE ENTRY TEST ENABLING OBJECTIVES. DESCRIBE hazards and precautions taken to avoid injury in the workplace.

E&I MAINTENANCE ENTRY TEST ENABLING OBJECTIVES. DESCRIBE hazards and precautions taken to avoid injury in the workplace. SAFETY Industrial DESCRIBE hazards and precautions taken to avoid injury in the workplace. Example #1: All of the following are common PPE used to perform maintenance activities EXCEPT: a. Safety Glasses

More information

Resistance, Ohm s Law, and the Temperature of a Light Bulb Filament

Resistance, Ohm s Law, and the Temperature of a Light Bulb Filament Resistance, Ohm s Law, and the Temperature of a Light Bulb Filament Name Partner Date Introduction Carbon resistors are the kind typically used in wiring circuits. They are made from a small cylinder of

More information

DIRECT CURRENT GENERATORS

DIRECT CURRENT GENERATORS DIRECT CURRENT GENERATORS Revision 12:50 14 Nov 05 INTRODUCTION A generator is a machine that converts mechanical energy into electrical energy by using the principle of magnetic induction. This principle

More information

Table of Contents 1. Introduction 2. Electrical Fundamentals Electron Theory Matter 4 MOLECULE

Table of Contents 1. Introduction 2. Electrical Fundamentals Electron Theory Matter 4 MOLECULE Table of Contents 1. Introduction 3 2. Electrical Fundamentals 4 Electron Theory 4 Matter 4 MOLECULE 5 The atom 6 Atom construction 7 Electrical charges 11 Balanced atoms 12 Ions 13 Electron orbits 15

More information

First Year (Electrical & Electronics Engineering)

First Year (Electrical & Electronics Engineering) Z PRACTICAL WORK BOOK For The Course EE-113 Basic Electrical Engineering For First Year (Electrical & Electronics Engineering) Name of Student: Class: Batch : Discipline: Class Roll No.: Examination Seat

More information

Fig. 1 Analogue Multimeter Fig.2 Digital Multimeter

Fig. 1 Analogue Multimeter Fig.2 Digital Multimeter ELECTRICAL INSTRUMENT AND MEASUREMENT Electrical measuring instruments are devices used to measure electrical quantities such as electric current, voltage, resistance, electrical power and energy. MULTIMETERS

More information

Series and Parallel Circuits

Series and Parallel Circuits Series and Parallel Circuits Direct-Current Series Circuits A series circuit is a circuit in which the components are connected in a line, one after the other, like railroad cars on a single track. There

More information

Voltage Drop (Single-Phase)

Voltage Drop (Single-Phase) Voltage Drop (Single-Phase) To Find: To Find Voltage Drop Formula: 2 x K x L x I V.D. = ------------------- C.M. Variables: C.M. = Circular Mill Area (Chapter 9, Table 8) To Find Voltage Drop Percentage

More information

Table of Contents. The Basics of Electricity 2. Using a Digital Multimeter 4. Testing Voltage 8. Testing Current 10. Testing Resistance 12

Table of Contents. The Basics of Electricity 2. Using a Digital Multimeter 4. Testing Voltage 8. Testing Current 10. Testing Resistance 12 Table of Contents The Basics of Electricity 2 Using a Digital Multimeter 4 IDEAL Digital Multimeters An Introduction The Basics of Digital Multimeters is designed to give you a fundamental knowledge of

More information

ELECTRICITY UNIT SCIENCE AND TECHNOLGY- CYCLE 3 NAME GROUP. Teacher: Mr. D. Strina E-mail: dstrina@swlauriersb.qc.ca MC CAIG ELEMENTARY SCHOOL

ELECTRICITY UNIT SCIENCE AND TECHNOLGY- CYCLE 3 NAME GROUP. Teacher: Mr. D. Strina E-mail: dstrina@swlauriersb.qc.ca MC CAIG ELEMENTARY SCHOOL ELECTRICITY UNIT SCIENCE AND TECHNOLGY- CYCLE 3 NAME GROUP Teacher: Mr. D. Strina E-mail: dstrina@swlauriersb.qc.ca MC CAIG ELEMENTARY SCHOOL CLASS NOTES--- Atom An atom is the smallest particle characterizing

More information

Simple circuits worksheet

Simple circuits worksheet Simple circuits worksheet This worksheet and all related files are licensed under the Creative Commons ttribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,

More information

OHM S LAW AND RESISTANCE

OHM S LAW AND RESISTANCE OHM S LAW AND RESISTANCE Resistance is one of the basic principles of Ohm s law, and can be found in virtually any device used to conduct electricity. Georg Simon Ohm was a German physicist who conducted

More information

Junior Cert Science Numeracy Resources

Junior Cert Science Numeracy Resources Focus on Numeracy Junior Cert Science Numeracy Resources Let s Talk About Measurement Measurement of Time Directions: Put a < (less than), > (greater than), or = symbol between the two amounts of time.

More information

Current, Resistance and Electromotive Force. Young and Freedman Chapter 25

Current, Resistance and Electromotive Force. Young and Freedman Chapter 25 Current, Resistance and Electromotive Force Young and Freedman Chapter 25 Electric Current: Analogy, water flowing in a pipe H 2 0 gallons/minute Flow Rate is the NET amount of water passing through a

More information

DET Practical Electronics (Intermediate 1)

DET Practical Electronics (Intermediate 1) DET Practical Electronics (Intermediate 1) 731 August 2000 HIGHER STILL DET Practical Electronics (Intermediate 1) Support Materials CONTENTS Section 1 Learning about Resistors Section 2 Learning about

More information

APPLICATION NOTES. Bimetal Disc Thermostat. Operating Principle

APPLICATION NOTES. Bimetal Disc Thermostat. Operating Principle Bimetal Disc Thermostat APPLICATION NOTES Operating Principle Bimetal disc thermostats are thermally actuated switches. When the bimetal disc is exposed to its predetermined calibration temperature, it

More information

Objectives. Capacitors 262 CHAPTER 5 ENERGY

Objectives. Capacitors 262 CHAPTER 5 ENERGY Objectives Describe a capacitor. Explain how a capacitor stores energy. Define capacitance. Calculate the electrical energy stored in a capacitor. Describe an inductor. Explain how an inductor stores energy.

More information

Electricity. Introduction. Key concepts of electricity. Static electricity. Current electricity

Electricity. Introduction. Key concepts of electricity. Static electricity. Current electricity Electricity Introduction This topic explores the key concepts of electricity as they relate to: static electricity current electricity higher order models of electric circuits household electricity electricity

More information

GenTech Practice Questions

GenTech Practice Questions GenTech Practice Questions Basic Electronics Test: This test will assess your knowledge of and ability to apply the principles of Basic Electronics. This test is comprised of 90 questions in the following

More information

People s Physics Book

People s Physics Book The Big Ideas: The name electric current is given to the phenomenon that occurs when an electric field moves down a wire at close to the speed of light. Voltage is the electrical energy density (energy

More information

Light Bulbs in Parallel Circuits

Light Bulbs in Parallel Circuits Light Bulbs in Parallel Circuits In the last activity, we analyzed several different series circuits. In a series circuit, there is only one complete pathway for the charge to travel. Here are the basic

More information

Section B: Electricity

Section B: Electricity Section B: Electricity We use mains electricity, supplied by power stations, for all kinds of appliances in our homes, so it is very important to know how to use it safely. In this chapter you will learn

More information

HOW TO USE MULTIMETER. COMPILE BY: Dzulautotech

HOW TO USE MULTIMETER. COMPILE BY: Dzulautotech HOW TO USE MULTIMETER COMPILE BY: Dzulautotech 1. GENERAL Electricity is absolutely necessary for an automobile. It is indispensable when the engine is started, the air fuel mixture is ignited and exploded,

More information

Experiment #3, Ohm s Law

Experiment #3, Ohm s Law Experiment #3, Ohm s Law 1 Purpose Physics 182 - Summer 2013 - Experiment #3 1 To investigate the -oltage, -, characteristics of a carbon resistor at room temperature and at liquid nitrogen temperature,

More information

GROUND DETECTION CIRCUITS FOR STATIONARY APPLICATIONS (IN PLAIN DOWN TO EARTH LANGUAGE)

GROUND DETECTION CIRCUITS FOR STATIONARY APPLICATIONS (IN PLAIN DOWN TO EARTH LANGUAGE) GROUND DETECTION CIRCUITS FOR STATIONARY APPLICATIONS (IN PLAIN DOWN TO EARTH LANGUAGE) Matthew Theriault Designer Hindle Power Inc. Easton, PA SCOPE AND PURPOSE OF THE PAPER Why do we bother to monitor

More information

Electronics. Basic Concepts. Yrd. Doç. Dr. Aytaç GÖREN Yrd. Doç. Dr. Levent ÇETİN

Electronics. Basic Concepts. Yrd. Doç. Dr. Aytaç GÖREN Yrd. Doç. Dr. Levent ÇETİN Electronics Basic Concepts Electric charge Ordinary matter is made up of atoms which have positively charged nuclei and negatively charged electrons surrounding them. Charge is quantized as the subtraction

More information

SUBJECT: How to wire a motor starter Number: AN-MC-004 Date Issued: 2/08/2005 Revision: Original

SUBJECT: How to wire a motor starter Number: AN-MC-004 Date Issued: 2/08/2005 Revision: Original SUBJECT: How to wire a motor starter Number: AN-MC-004 Date Issued: 2/08/2005 Revision: Original A motor starter is a combination of devices to allow an induction motor to start, run and stop according

More information

Wood Technology Electronics

Wood Technology Electronics Wood Technology Electronics It is not necessary to carry out all the activities contained in this unit. Please see Teachers Notes for explanations, additional activities, and tips and suggestions. Theme

More information

Physics. Cambridge IGCSE. Workbook. David Sang. Second edition. 9780521757843 Cambers & Sibley: IGCSE Physics Cover. C M Y K

Physics. Cambridge IGCSE. Workbook. David Sang. Second edition. 9780521757843 Cambers & Sibley: IGCSE Physics Cover. C M Y K Cambridge IGCSE Physics, Second edition matches the requirements of the latest Cambridge IGCSE Physics syllabus (0625). It is endorsed by Cambridge International Examinations for use with their examination.

More information

Parallel Circuits. Objectives After studying this chapter, you will be able to answer these questions: 1. How are electrical components connected

Parallel Circuits. Objectives After studying this chapter, you will be able to answer these questions: 1. How are electrical components connected This sample chapter is for review purposes only. Copyright The Goodheart-Willcox Co., Inc. All rights reserved. Electricity Objectives After studying this chapter, you will be able to answer these questions:.

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) If the voltage at a point in space is zero, then the electric field must be A) zero. B) positive.

More information

Experiment #5, Series and Parallel Circuits, Kirchhoff s Laws

Experiment #5, Series and Parallel Circuits, Kirchhoff s Laws Physics 182 Summer 2013 Experiment #5 1 Experiment #5, Series and Parallel Circuits, Kirchhoff s Laws 1 Purpose Our purpose is to explore and validate Kirchhoff s laws as a way to better understanding

More information

Electric Potential Difference

Electric Potential Difference Name: Electric Potential Difference Read from Lesson 1 of the Current Electricity chapter at The Physics Classroom: http://www.physicsclassroom.com/class/circuits/u9l1a.html http://www.physicsclassroom.com/class/circuits/u9l1b.html

More information

Lesson Plan for Electric Circuits

Lesson Plan for Electric Circuits Lesson Plan for Electric Circuits Last Updated: 11/6/2009 Updated by: Sci4Kids Electric Circuits Lesson 1 Lesson Summary Lesson name Audience Focus Standards (4 th grade) Fourth Grade AZ standard(s) applied

More information

Physics, Chapter 27: Direct-Current Circuits

Physics, Chapter 27: Direct-Current Circuits University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Robert Katz Publications Research Papers in Physics and Astronomy 1-1-1958 Physics, Chapter 27: Direct-Current Circuits

More information

Voltage, Current, Resistance, Capacitance and Inductance

Voltage, Current, Resistance, Capacitance and Inductance Voltage, Current, Resistance, Capacitance and Inductance Really basic electrical engineering. 1 Electricity and conductors Electricity is the movement of electrons. Electrons move easily through a conductor

More information

Chapter 22: Electric motors and electromagnetic induction

Chapter 22: Electric motors and electromagnetic induction Chapter 22: Electric motors and electromagnetic induction The motor effect movement from electricity When a current is passed through a wire placed in a magnetic field a force is produced which acts on

More information

Resistors in Series and Parallel

Resistors in Series and Parallel Resistors in Series and Parallel Bởi: OpenStaxCollege Most circuits have more than one component, called a resistor that limits the flow of charge in the circuit. A measure of this limit on charge flow

More information

DC GENERATOR THEORY. LIST the three conditions necessary to induce a voltage into a conductor.

DC GENERATOR THEORY. LIST the three conditions necessary to induce a voltage into a conductor. DC Generators DC generators are widely used to produce a DC voltage. The amount of voltage produced depends on a variety of factors. EO 1.5 LIST the three conditions necessary to induce a voltage into

More information

GLOLAB Two Wire Stepper Motor Positioner

GLOLAB Two Wire Stepper Motor Positioner Introduction A simple and inexpensive way to remotely rotate a display or object is with a positioner that uses a stepper motor to rotate it. The motor is driven by a circuit mounted near the motor and

More information

Lab E1: Introduction to Circuits

Lab E1: Introduction to Circuits E1.1 Lab E1: Introduction to Circuits The purpose of the this lab is to introduce you to some basic instrumentation used in electrical circuits. You will learn to use a DC power supply, a digital multimeter

More information

Σ I in = Σ I out E = IR 1 + IR 2 FXA 2008 KIRCHHOFF S LAWS 1. Candidates should be able to : LAW 1 (K1)

Σ I in = Σ I out E = IR 1 + IR 2 FXA 2008 KIRCHHOFF S LAWS 1. Candidates should be able to : LAW 1 (K1) UNT G482 Module 3 2.3.1 Series & Parallel Circuits Candidates should be able to : KRCHHOFF S LAWS 1 LAW 1 (K1) State Kirchhoff s second law and appreciate that it is a consequence of conservation of energy.

More information

EXPERIMENT 7 OHM S LAW, RESISTORS IN SERIES AND PARALLEL

EXPERIMENT 7 OHM S LAW, RESISTORS IN SERIES AND PARALLEL 260 7- I. THEOY EXPEIMENT 7 OHM S LAW, ESISTOS IN SEIES AND PAALLEL The purposes of this experiment are to test Ohm's Law, to study resistors in series and parallel, and to learn the correct use of ammeters

More information

Electrical Design TABLE OF CONTENTS FOREWORD... 1. BASIC ELEMENTS OF ELECTRICITY... 2 Electricity works much like water Ohm s Law

Electrical Design TABLE OF CONTENTS FOREWORD... 1. BASIC ELEMENTS OF ELECTRICITY... 2 Electricity works much like water Ohm s Law TABLE OF CONTENTS Electrical Design TABLE OF CONTENTS FOREWORD.......................................................................... 1 BASIC ELEMENTS OF ELECTRICITY..................................................

More information

Objectives: Part 1: Build a simple power supply. CS99S Laboratory 1

Objectives: Part 1: Build a simple power supply. CS99S Laboratory 1 CS99S Laboratory 1 Objectives: 1. Become familiar with the breadboard 2. Build a logic power supply 3. Use switches to make 1s and 0s 4. Use LEDs to observe 1s and 0s 5. Make a simple oscillator 6. Use

More information

Aircraft Electrical System

Aircraft Electrical System Chapter 9 Aircraft Electrical System Introduction The satisfactory performance of any modern aircraft depends to a very great degree on the continuing reliability of electrical systems and subsystems.

More information

ElectroMagnetic Induction. AP Physics B

ElectroMagnetic Induction. AP Physics B ElectroMagnetic Induction AP Physics B What is E/M Induction? Electromagnetic Induction is the process of using magnetic fields to produce voltage, and in a complete circuit, a current. Michael Faraday

More information

Using and Wiring Light Emitting Diodes (LEDs) for Model Railroads

Using and Wiring Light Emitting Diodes (LEDs) for Model Railroads Using and Wiring Light Emitting Diodes (LEDs) for Model Railroads LEDs have many useful applications in Model railroading, including: Locomotive headlights Rear-end warning lights for cabooses and passenger

More information

Build A Simple Electric Motor (example #1)

Build A Simple Electric Motor (example #1) PHY115 Experiment 11 Build A Simple Electric Motor (example #1) MATERIAL This is the necessary equipment. Present any list of material in your written lab report. 1.5 V battery in series 1 ceramic magnet

More information

Voltage, energy and power in electric circuits. Science teaching unit

Voltage, energy and power in electric circuits. Science teaching unit Voltage, energy and power in electric circuits Science teaching unit Disclaimer The Department for Children, Schools and Families wishes to make it clear that the Department and its agents accept no responsibility

More information

Input, Process and Output

Input, Process and Output Intermediate 1 Physics Electronics Input, Process and Output Digital Logic Gates Intermediate 1 Physics Electronics Input, Process and Output 1 2 Input, Process and Output Electronic Systems When something

More information

The Electrical Control of Chemical Reactions E3-1

The Electrical Control of Chemical Reactions E3-1 Experiment 3 The Electrical Control of Chemical Reactions E3-1 E3-2 The Task In this experiment you will explore the processes of oxidation and reduction, in which electrons flow between materials, and

More information

Tristan s Guide to: Solving Series Circuits. Version: 1.0 Written in 2006. Written By: Tristan Miller Tristan@CatherineNorth.com

Tristan s Guide to: Solving Series Circuits. Version: 1.0 Written in 2006. Written By: Tristan Miller Tristan@CatherineNorth.com Tristan s Guide to: Solving Series Circuits. Version: 1.0 Written in 2006 Written By: Tristan Miller Tristan@CatherineNorth.com Series Circuits. A Series circuit, in my opinion, is the simplest circuit

More information

Radio Control System

Radio Control System Radio Control System The Radio Control System consists of the control transmitter unit held by the operator and the receiver with its associated components in the robot. The Radio Control Transmitter converts

More information

The Electrical Properties of Materials: Resistivity

The Electrical Properties of Materials: Resistivity The Electrical Properties of Materials: Resistivity 1 Objectives 1. To understand the properties of resistance and resistivity in conductors, 2. To measure the resistivity and temperature coefficient of

More information

Tristan s Guide to: Solving Parallel Circuits. Version: 1.0 Written in 2006. Written By: Tristan Miller Tristan@CatherineNorth.com

Tristan s Guide to: Solving Parallel Circuits. Version: 1.0 Written in 2006. Written By: Tristan Miller Tristan@CatherineNorth.com Tristan s Guide to: Solving Parallel Circuits. Version: 1.0 Written in 2006 Written By: Tristan Miller Tristan@CatherineNorth.com Parallel Circuits. Parallel Circuits are a little bit more complicated

More information

Solutions to Bulb questions

Solutions to Bulb questions Solutions to Bulb questions Note: We did some basic circuits with bulbs in fact three main ones I can think of I have summarized our results below. For the final exam, you must have an understanding of

More information

Line Loss WSDOT Winter 2008 BZA

Line Loss WSDOT Winter 2008 BZA Electrical Design Training Class Line Loss WSDOT Winter 2008 BZA Presented by: Keith Calais 1 OHM S LAW P = Watts (Power) I = CURRENT (AMPERES) R = RESISTANCE (OHMS) E = ELECTROMOTIVE FORCE (VOLTS) P =

More information

The Charging System. Section 5. Charging System. Charging System. The charging system has two essential functions:

The Charging System. Section 5. Charging System. Charging System. The charging system has two essential functions: The Charging System Charging System The charging system has two essential functions: Generate electrical power to run the vehicle s electrical systems Generate current to recharge the vehicle s battery

More information

Lecture Notes: ECS 203 Basic Electrical Engineering Semester 1/2010. Dr.Prapun Suksompong 1 June 16, 2010

Lecture Notes: ECS 203 Basic Electrical Engineering Semester 1/2010. Dr.Prapun Suksompong 1 June 16, 2010 Sirindhorn International Institute of Technology Thammasat University School of Information, Computer and Communication Technology Lecture Notes: ECS 203 Basic Electrical Engineering Semester 1/2010 Dr.Prapun

More information