Resistors. Some substances are insulators. A battery will not make detectible current flow through them.
|
|
- Virginia Cain
- 7 years ago
- Views:
Transcription
1 Resistors Some substances are insulators. A battery will not make detectible current flow through them. Many substances (lead, iron, graphite, etc.) will let current flow. For most substances that are not insulators, the current is approximately proportional to the difference in voltage on the two sides. I = K(V C V D ) How much current flows depends on the substance, shape, and dimensions.
2 K in the equation I = K(V C V D ) depends on the substance, shape, & dimensions. The value of K for a material is called its conductance. The conductance is usually represented by the letter G. I = G(V C V D ) Notice again that it is the difference in voltages that determines the current. The reciprocal of the conductance is called the resistance. R = 1/G = (V C V D ) Memorize this A chunk of material with a wire on each side that is not an insulator is called a resistor. The bigger the resistance, the lower the conductance is. The bigger the resistance, the less it conducts. Notation for Voltage Differences Since current is determined by the difference of two voltages, we need a convenient notation for the difference of two voltages. The notation normally used is the following. V CD = V C V D V AB = V A V B etc. MEMORIZE THIS THOROUGHY!!
3 I = (V C V D ) = V CD = V CD = IR Ohm s Law Symbol for Resistor Wires Have Resistance Wires are usually made out of copper (Cu) or aluminum (Al). Cu & Al have resistance, but the resistance is very small. V A V B IR 0 since R is very small. (Remember what we said about wide pipes!) Since V A V B 0, V A V B. The voltage is approximately the same on both ends of a wire. A perfect wire is a wire with R = 0. We will work most problems as if wires are perfect.
4 Resistance Units I = IR = V AB R = The units of resistance are. This is called ohms. The resistance of a resistor in ohms is the number of volts across it needed to make one amp of current flow. A resistor which needs 5 volts to make one amp flow is called a 5 ohm resistor. R = = 5 ohms = 5 Ω. 1 ohm = 1 Ω. V = IR if V is in volts, I is in amps, & R is in ohms. 5 volts = (1 amp)(5 ohms) 10 volts = (2 amps)(5 ohms) 1 K Ω = 1000 Ω = 10 3 Ω 1 M Ω = 10 6 Ω
5 Current Units 1 Amp = 1 A = 1 1 ma = 1 milliamp = 10-3 Amp = Amp 1 µa = 1 microamp = 10-6 Amp With I in amps & R in ohms, IR = volts across the resistor. If we put I in ma, it s 1000 times bigger. 7 Amps = 7000 ma. If we put R in KΩ, it s 1000 times smaller. 5 ohms = KΩ. If we put I in ma & R in KΩ, then IR = volts still. I is 1000 times larger & R is a 1000 times smaller, so the product is the same as before. 5 Amps x 3 Ω = 15 volts 5000 ma x KΩ = 15 volts Thus, V = IR with V in volts, I in ma, & R in KΩ.
6 Incompressibility The electron fluid in a wire or device is nearly incompressible. The number of electrons in a 1 mm 3 volume always approximately equals the number of protons. Suppose more electrons flowed into a region than flowed out, and the number of electrons in the region increased by 0.1%. Even this small percentage of extra electrons is a huge negative charge. The negative charge would repel electrons out of the region until the number of electrons once more equals the number of protons. The electrical forces in a conductor, or even a resistor, force the number of electrons in each region to remain almost exactly equal to the number of protons. Since the number of protons is fixed (protons don t move), this means that the number of electrons in each region never changes noticeably. The electron fluid is incompressible, like water in a pipe. For a wire, this implies that the current is the same at all points in the wire. If i A were different from i B, the number of electrons between A & B would be changing; it wouldn t be constant. Therefore i A = i B. Current is the same everywhere in a wire, even if the wire is interrupted by resistors or other devices.
7 The Main Cause of Errors in Circuit Analysis Most errors in circuit analysis are the result of not taking seriously enough one of the following two facts: 1. The current is the same everywhere in a wire. 2. The voltage is the same at all points connected by a wire. We will never find a case where either of these two facts is false, never. Keeping them in the front of your mind as you analyze circuits will be a tremendous help.
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 informationExperiment 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 informationObjectives 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 informationTristan 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 informationTransformer circuit calculations
Transformer circuit calculations This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More informationElectrical 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 informationPreamble. Kirchoff Voltage Law (KVL) Series Resistors. In this section of my lectures we will be. resistor arrangements; series and
Preamble Series and Parallel Circuits Physics, 8th Edition Custom Edition Cutnell & Johnson Chapter 0.6-0.8, 0.0 Pages 60-68, 69-6 n this section of my lectures we will be developing the two common types
More informationVoltage, 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 informationIntroduction 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 informationVoltage, Current, and Resistance
Voltage, Current, and Resistance This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More informationSeries 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 informationOhm'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 informationParallel DC circuits
Parallel DC circuits This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More informationKirchhoff's Current Law (KCL)
Kirchhoff's Current Law (KCL) I. Charge (current flow) conservation law (the Kirchhoff s Current law) Pipe Pipe Pipe 3 Total volume of water per second flowing through pipe = total volume of water per
More informationTHE 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 informationExperiment 8 Series-Parallel Circuits
Experiment 8 Series-Parallel Circuits EL 111 - DC Fundamentals By: Walter Banzhaf, E.K. Smith, and Winfield Young University of Hartford Ward College of Technology Objectives: 1. For the student to measure
More informationExperiment 4 ~ Resistors in Series & Parallel
Experiment 4 ~ Resistors in Series & Parallel Objective: In this experiment you will set up three circuits: one with resistors in series, one with resistors in parallel, and one with some of each. You
More informationCourse description: Introduces the student to basic electricity with an emphasis on Ohms Law.
The following is presented for information purposes only and comes with no warranty. See http://www.bristolwatch.com/ Course Title: Basic Electricity and Ohms Law Course description: Introduces the student
More informationAC Transport constant current vs. low impedance modes
Application Note 184-42 AC Transport constant current vs. low impedance modes The AC Transport option offers the user the ability to put the current source in a low output impedance mode. This mode is
More information3.- 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= (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 informationTutorial 12 Solutions
PHYS000 Tutorial 2 solutions Tutorial 2 Solutions. Two resistors, of 00 Ω and 200 Ω, are connected in series to a 6.0 V DC power supply. (a) Draw a circuit diagram. 6 V 00 Ω 200 Ω (b) What is the total
More informationResistors 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 informationStudent 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 informationMeasurement of Capacitance
Measurement of Capacitance Pre-Lab Questions Page Name: Class: Roster Number: Instructor:. A capacitor is used to store. 2. What is the SI unit for capacitance? 3. A capacitor basically consists of two
More informationCurrent, 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 informationOHM 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 informationPHYSICS 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 informationKirchhoff s Laws Physics Lab IX
Kirchhoff s Laws Physics Lab IX Objective In the set of experiments, the theoretical relationships between the voltages and the currents in circuits containing several batteries and resistors in a network,
More informationMULTIPLE 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 informationELECTRICAL 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 informationFB-DC3 Electric Circuits: Series and Parallel Circuits
CREST Foundation Electrical Engineering: DC Electric Circuits Kuphaldt FB-DC3 Electric Circuits: Series and Parallel Circuits Contents 1. What are "series" and "parallel"? 2. Simple series circuits 3.
More informationParallel 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 informationAmmeter design. Resources and methods for learning about these subjects (list a few here, in preparation for your research):
Ammeter design This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More information7. 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 informationChapter 1. Fundamental Electrical Concepts
Chapter 1 Fundamental Electrical Concepts Charge, current, voltage, power circuits, nodes, branches Branch and node voltages, Kirchhoff Laws Basic circuit elements, combinations 01 fundamental 1 1.3 Electrical
More informationSTUDY 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 informationParallel and Series Resistors, Kirchoff s Law
Experiment 2 31 Kuwait University Physics 107 Physics Department Parallel and Series Resistors, Kirchoff s Law Introduction In this experiment the relations among voltages, currents and resistances for
More informationCONSTRUCTING A VARIABLE POWER SUPPLY UNIT
CONSTRUCTING A VARIABLE POWER SUPPLY UNIT Building a power supply is a good way to put into practice many of the ideas we have been studying about electrical power so far. Most often, power supplies are
More informationResistors in Series and Parallel
OpenStax-CNX module: m42356 1 Resistors in Series and Parallel OpenStax College This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 Abstract Draw a circuit
More informationChapter 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 informationVoltage 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 informationChapter 5. Parallel Circuits ISU EE. C.Y. Lee
Chapter 5 Parallel Circuits Objectives Identify a parallel circuit Determine the voltage across each parallel branch Apply Kirchhoff s current law Determine total parallel resistance Apply Ohm s law in
More informationParallel DC circuits
Parallel DC circuits This worksheet and all related files are licensed under the Creative Commons Attribution License, version.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/.0/,
More information13.10: 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 informationSeries and Parallel Circuits
Direct Current (DC) Direct current (DC) is the unidirectional flow of electric charge. The term DC is used to refer to power systems that use refer to the constant (not changing with time), mean (average)
More informationAlkaline Manganese (Mercury free) IEC: LR03; JIS: AM-4; ANSI: AAA; MN2400; Micro chemical system: Zn / KOH-H 2 O / MnO 2
IEC: LR03; JIS: AM-4; ANSI: AAA; MN2400; Micro rated: 1200 mah discharge at 10mA load; 24hours/day 1070 mah discharge at 75ohms load; 24hours/day minimum: 1050 mah discharge at 20mA constant current 300
More informationDC mesh current analysis
DC mesh current analysis This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More informationModule 2. DC Circuit. Version 2 EE IIT, Kharagpur
Module DC Circuit Lesson 4 Loop Analysis of resistive circuit in the context of dc voltages and currents Objectives Meaning of circuit analysis; distinguish between the terms mesh and loop. To provide
More informationAP 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 informationPS-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 informationHow To Find The Current Of A Circuit
The node voltage method Equivalent resistance Voltage / current dividers Source transformations Node voltages Mesh currents Superposition Not every circuit lends itself to short-cut methods. Sometimes
More informationExperiment #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 informationV out. Figure 1: A voltage divider on the left, and potentiometer on the right.
Living with the Lab Fall 202 Voltage Dividers and Potentiometers Gerald Recktenwald v: November 26, 202 gerry@me.pdx.edu Introduction Voltage dividers and potentiometers are passive circuit components
More informationCLASS TEST GRADE 11. PHYSICAL SCIENCES: PHYSICS Test 3: Electricity and magnetism
CLASS TEST GRADE 11 PHYSICAL SCIENCES: PHYSICS Test 3: Electricity and magnetism MARKS: 45 TIME: 1 hour INSTRUCTIONS AND INFORMATION 1. Answer ALL the questions. 2. You may use non-programmable calculators.
More information101 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 information1. Introduction and Chapter Objectives
Real Analog Circuits 1 Chapter 1: Circuit Analysis Fundamentals 1. Introduction and Chapter Objectives In this chapter, we introduce all fundamental concepts associated with circuit analysis. Electrical
More informationChapter 11. Inductors ISU EE. C.Y. Lee
Chapter 11 Inductors Objectives Describe the basic structure and characteristics of an inductor Discuss various types of inductors Analyze series inductors Analyze parallel inductors Analyze inductive
More informationCurrent 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 informationLab 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 informationSeries-parallel DC circuits
Series-parallel DC circuits This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More informationEssential Electrical Concepts
Essential Electrical Concepts Introduction Modern vehicles incorporate many electrical and electronic components and systems: Audio Lights Navigation Engine control Transmission control Braking and traction
More informationChapter 19. Electric Circuits
Chapter 9 Electric Circuits Series Wiring There are many circuits in which more than one device is connected to a voltage source. Series wiring means that the devices are connected in such a way that there
More informationThe 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 information13. Diode Rectifiers, Filters, and Power Supplies
1 13. Diode Rectifiers, Filters, and Power Supplies Introduction A power supply takes Alternating Current or A.C. power from your electric utility (Con Edison) and converts the A.C. electrical current
More information1. True or False? A voltage level in the range 0 to 2 volts is interpreted as a binary 1.
File: chap04, Chapter 04 1. True or False? A voltage level in the range 0 to 2 volts is interpreted as a binary 1. 2. True or False? A gate is a device that accepts a single input signal and produces one
More informationSeries 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 informationAnalysis of a single-loop circuit using the KVL method
Analysis of a single-loop circuit using the KVL method Figure 1 is our circuit to analyze. We shall attempt to determine the current through each element, the voltage across each element, and the power
More informationDIRECT 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 informationGates, Circuits, and Boolean Algebra
Gates, Circuits, and Boolean Algebra Computers and Electricity A gate is a device that performs a basic operation on electrical signals Gates are combined into circuits to perform more complicated tasks
More informationPeople 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 informationLecture 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 informationLab 2: Resistance, Current, and Voltage
2 Lab 2: Resistance, Current, and Voltage I. Before you come to la.. A. Read the following chapters from the text (Giancoli): 1. Chapter 25, sections 1, 2, 3, 5 2. Chapter 26, sections 1, 2, 3 B. Read
More informationVoltage Loss Formula s
www.litz-wire.com HM Wire International Inc. Phone: 330-244-8501 Fax: 330-244-8561 Voltage Loss Formula s www.hmwire.com Voltage loss in a wire is synonymous to pressure loss in a pipe. Electric current
More informationInductors. Resources and methods for learning about these subjects (list a few here, in preparation for your research):
Inductors This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More information6 Series Parallel Circuits
6 Series Parallel Circuits This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/. Air Washington
More informationCircuit 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 informationOperational Amplifier - IC 741
Operational Amplifier - IC 741 Tabish December 2005 Aim: To study the working of an 741 operational amplifier by conducting the following experiments: (a) Input bias current measurement (b) Input offset
More informationFig. 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 informationCircuit Analysis using the Node and Mesh Methods
Circuit Analysis using the Node and Mesh Methods We have seen that using Kirchhoff s laws and Ohm s law we can analyze any circuit to determine the operating conditions (the currents and voltages). The
More informationSeries and Parallel Resistive Circuits Physics Lab VIII
Series and Parallel Resistive Circuits Physics Lab VIII Objective In the set of experiments, the theoretical expressions used to calculate the total resistance in a combination of resistors will be tested
More informationTECH 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 informationElectrical 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 informationCHAPTER 28 ELECTRIC CIRCUITS
CHAPTER 8 ELECTRIC CIRCUITS 1. Sketch a circuit diagram for a circuit that includes a resistor R 1 connected to the positive terminal of a battery, a pair of parallel resistors R and R connected to the
More informationRTD and thermocouple circuits, with millivolt calculations
RTD and thermocouple circuits, with millivolt calculations This worksheet and all related files are licensed under the Creative Commons ttribution License, version 1.0. To view a copy of this license,
More informationELECTRICAL 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 informationResistance, 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 informationRectifier circuits & DC power supplies
Rectifier circuits & DC power supplies Goal: Generate the DC voltages needed for most electronics starting with the AC power that comes through the power line? 120 V RMS f = 60 Hz T = 1667 ms) = )sin How
More informationSTUDY MATERIAL FOR CLASS 10+2 - Physics- CURRENT ELECTRICITY. The flow of electric charges in a particular direction constitutes electric current.
Chapter : 3 Current Electricity Current Electricity The branch of Physics which deals with the study of electric charges in motion is called current electricity. Electric current The flow of electric charges
More informationGENERAL SCIENCE LABORATORY 1110L Lab Experiment 6: Ohm s Law
GENERAL SCIENCE LABORATORY 1110L Lab Experiment 6: Ohm s Law OBJECTIVES: To verify Ohm s law, the mathematical relationship among current, voltage or potential difference, and resistance, in a simple circuit.
More informationUsing Current Transformers with the 78M661x
A Maxim Integrated Products Brand Using Current Transformers with the 78M661x APPLICATION NOTE AN_661x_021 April 2010 Introduction This application note describes using current transformers (CT) with the
More informationDET 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 informationCapacitors. Resources and methods for learning about these subjects (list a few here, in preparation for your research):
Capacitors This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/,
More informationElectroMagnetic 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 informationrpsa FIRE PROTECTION ENGINEERS
R.P. SCHIFILITI ASSOCIATES, INC. P.O. Box 297 Reading, Massachusetts 01867-0497 USA 781.944.9300 Fax / Data 781.942.7500 Telephone Sample Fire Alarm System Calculations 1. A fire alarm manufacturer specifies
More informationBasic voltmeter use. Resources and methods for learning about these subjects (list a few here, in preparation for your research):
Basic voltmeter use 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 informationLab 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 informationInduced voltages and Inductance Faraday s Law
Induced voltages and Inductance Faraday s Law concept #1, 4, 5, 8, 13 Problem # 1, 3, 4, 5, 6, 9, 10, 13, 15, 24, 23, 25, 31, 32a, 34, 37, 41, 43, 51, 61 Last chapter we saw that a current produces a magnetic
More informationPhysics 3330 Experiment #2 Fall 1999. DC techniques, dividers, and bridges R 2 =(1-S)R P R 1 =SR P. R P =10kΩ 10-turn pot.
Physics 3330 Experiment #2 Fall 1999 DC techniques, dividers, and bridges Purpose You will gain a familiarity with the circuit board and work with a variety of DC techniques, including voltage dividers,
More information2 A bank account for electricity II: flows and taxes
PHYS 189 Lecture problems outline Feb 3, 2014 Resistors and Circuits Having introduced capacitors, we now expand our focus to another very important component of a circuit resistors. This entails more
More information