# Resistors in Series. Section 28.2

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 esistors in Series When two or more resistors are connected end-toend, they are said to be in series. For a series combination of resistors, the currents are the same in all the resistors because the amount of charge that passes through one resistor must also pass through the other resistors in the same time interval. The potential difference will divide among the resistors such that the sum of the potential differences across the resistors is equal to the total potential difference across the combination. Section 28.2

2 esistors in Series, cont Currents are the same I = I 1 = I 2 Potentials add ΔV = V 1 + V 2 = I 1 + I 2 = I ( ) Consequence of Conservation of Energy The equivalent resistance has the same effect on the circuit as the original combination of resistors. Section 28.2

3 Equivalent esistance Series eq = The equivalent resistance of a series combination of resistors is the algebraic sum of the individual resistances and is always greater than any individual resistance. If one device in the series circuit creates an open circuit, all devices are inoperative. Section 28.2

4 Equivalent esistance Series An Example Are all 3 representations equivalent? A. yes B. no Two resistors are replaced with their equivalent resistance. Section 28.2

5 esistors in Parallel The potential difference across each resistor is the same because each is connected directly across the battery terminals. ΔV = ΔV 1 = ΔV 2 A junction is a point where the current can split. The current, I, that enters junction must be equal to the total current leaving that junction. I = I 1 + I 2 = (ΔV 1 / 1 ) + (ΔV 2 / 2 ) The currents are generally not the same. Consequence of conservation Section 28.2 of electric charge

6 Equivalent esistance Parallel, Examples Are all three diagrams equivalent? Equivalent resistance replaces the two original resistances. Section 28.2

7 Equivalent esistance eq Parallel esistors The inverse of the equivalent resistance of two or more resistors connected in parallel is the algebraic sum of the inverses of the individual resistance. The equivalent is always less than the smallest resistor in the group. Section 28.2

8 esistors in Parallel: Final Observations In parallel, each device operates independently of the others so that if one is switched off, the others remain on. In parallel, all of the devices operate on the same voltage. The current takes all the paths. The lower resistance will have higher currents. Even very high resistances will have some currents. Household circuits are wired so that electrical devices are connected in parallel. Section 28.2

9 Effective resistance: two resistors in series and 2 experience the same current but different voltages. Largest has largest V. eq V I V V I I I I eq is larger than either 1 or 2.

10 1 2 Effective resistance: two resistors in parallel 1 and 2 experience the same voltage but different currents. Smallest has largest I / / V V V I I V I V eq eq is smaller than smallest of 1 and 2.

11 Some Circuit Notes A local change in one part of a circuit may result in a global change throughout the circuit. For example, changing one resistor will affect the currents and voltages in all the other resistors and the terminal voltage of the battery. In a series circuit, there is one path for the current to take. In a parallel circuit, there are multiple paths for the current to take. Section 28.2

12

13 The switch is initially open. When the switch is closed, the current measured by the ammeter will: A. increase B. decrease C. stay the same D. fall to zero.

14

15

16 iclicker Quiz (1) I have completed at least 50% of the reading and study-guide assignments associated with the lecture, as indicated on the course schedule. A. True B. False Hint: This is a good time to read the chapter summaries about circuits. BTW Current is NEVE used up. Today: eview of series & parallel use video demos and MU. How to add up resistors in series and parallel: light bulb problems. A. No new Circuit elements. B. Terms: Branch, junction Loop C. Kirchhoff s Laws. Pay attention to signs of quantities and directions of current flow.

17 Combinations of esistors The 8.0-W and 4.0-W resistors are in series and can be replaced with their equivalent, 12.0 W The 6.0-W and 3.0-W resistors are in parallel and can be replaced with their equivalent, 2.0 W These equivalent resistances are in series and can be replaced with their equivalent resistance, 14.0 W Section 28.2

18 Which part involves doing an integral? A. a B. b C. both a and b. D. neither. E. Squirrel

19 Inside to out esistance of an object with arbitrary shape End-to-end: d length d area d 2 ( b a dz A(z) 2 ) 0 L dz 2 (b 2 a ) L 2 ( b a 2 ) dz Inside-out: d length d area d dr A(r) dr 2 rl b dr ln 2 L a 2 L b a

20 a b L dz ) ( ) ( r 2 z dz z A dz A dl d esistance of an object with arbitrary shape L z L u du a b L L z a b a dz ] / ) ( [ ab L b a a b L 1 1

21 eduction of a resistive network 2 /2 2

22 eduction of a resistive network a b a b a b /3 (7/3)

23 A freq. test question is what is the magnitude and sign of the potential difference of a relative to b.

24 eduction of a resistive network Apply 42 V between a and c. What is I between a and c? I = 3 A What is V bc? V bc = 6 V What is I 2? I 2 = 2 A

25 Compare the brightness of the four identical bulbs in this circuit. V D is in parallel with a zero-resistance wire. The current will take the zero-resistance path and bypass D altogether. A and B are in series. So they will burn equally bright. Together, they see the full battery voltage. C experiences the full battery voltage, or twice the voltage experienced by A or B. So C is much brighter.

26 If 1 is removed, 2 will glow (1) more brightly. (2) less brightly. (3) same brightness as before. If 1 is removed, 2 will glow (1) more brightly. (2) less brightly. (3) same brightness as before. Household devices are wired to run in parallel!

27 Strings of 50 Christmas lights in series. Assume ~100 V source and 25 W power consumption. What is the resistance of a single bulb? (thought question.) A. 2 B. 4 C. 8 D. 10

28 German physicist Worked with obert Bunsen Kirchhoff and Bunsen Invented the spectroscope and founded the science of spectroscopy Discovered the elements cesium and rubidium Invented astronomical spectroscopy Gustav Kirchhoff Section 28.3

29 Multiloop circuits Branch: An independent current path experiences only one current at a given moment. It may be a simple wire or may also contain one or more circuit elements connected in series. Junction: A point where three or more circuit branches meet. Loop: A current path that begins and ends at the same circuit point, traversing one or more circuit branches, but without ever passing the same point twice.

30 Multiloop circuits The circuit above has:? branches,? junctions,? loops. 3 Independent Equations. To solve for 3 unknown branch currents, we need 3 equations. To get these equations, use all but one (2 1 = 1) junction, and as many independent loops as needed ( 3 1 = 2).

31 Kirchhoff s current rule: I 0 n Current rule: The total current flowing into a junction is zero. Arrows define positive branch-current directions. A current later determined to be negative flows opposite its arrow. I I 1 I2 0 I I I 0 I I I

32 Kirchoff s Voltage ule: Vn 0 Voltage rule: The voltage changes around a loop sum to zero. Arrows define positive branch-current directions. V = + for a battery crossing from to + terminal. Use V = I when crossing a resistor in the positive direction. Use V = +I when crossing a resistor in the negative direction. Alpine loop elevation I 11 0

33 Single-loop circuit example 20 I(2000) 30 I(1000) I(1500) 25 I(500) 15 I(5000) 0 I I 15/ ma V A V ground 20 I(2000) 30 I(1000) 10 I(3000) 10 (0.003)(3000) 19 V

34 Multiloop circuit example Bottom loop: I 2 = I 1 Substitute I 2 in junction Eq: 5 3 I2(1) I (2) 0 I 3 = 2I 1 Substitute I 2 and I 3 in top loop: I 1 = 5/3 I 2 I1 I I1(1) I (1) 5 0 Solve for currents: I 1 = 5/3, I 2 = 5/3, I 3 = 10/3

35 Multiloop circuit example I1 10 4I 14 I.5I 6 0 2I 10 6I1 I I I 1 I (1.5I 1 I2 I I 0 6) ( 3I ) I1 2 I2 3 I3 1

36

37

### Chapter 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

### Circuits. The light bulbs in the circuits below are identical. Which configuration produces more light? (a) circuit I (b) circuit II (c) both the same

Circuits The light bulbs in the circuits below are identical. Which configuration produces more light? (a) circuit I (b) circuit II (c) both the same Circuit II has ½ current of each branch of circuit

### = (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

### Circuits. PHY2049: Chapter 27 1

Circuits PHY2049: Chapter 27 1 What You Already Know Nature of current Current density Drift speed and current Ohm s law Conductivity and resistivity Calculating resistance from resistivity Power in electric

### 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

### 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

### Physics 9 Fall 2009 Homework 6 - Solutions

. Chapter 32 - Exercise 8. Physics 9 Fall 29 Homework 6 - s How much power is dissipated by each resistor in the figure? First, let s figure out the current in the circuit. Since the two resistors are

### Resistance Review Following the potential around a circuit Multiloop Circuits RC Circuits

DC Circuits esistance eview Following the potential around a circuit Multiloop Circuits C Circuits Homework for today: ead Chapters 6, 7 Chapter 6 Questions, 3, 0 Chapter 6 Problems, 7, 35, 77 Homework

### 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

### Parallel 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

### FREQUENTLY ASKED QUESTIONS October 2, 2012

FREQUENTLY ASKED QUESTIONS October 2, 2012 Content Questions Why do batteries require resistors? Well, I don t know if they require resistors, but if you connect a battery to any circuit, there will always

### Unit 7: Electric Circuits

Multiple Choice Portion 1. The diagram below shows part of an electrical circuit. Unit 7: Electric Circuits 4. A 12 V battery supplies a 5.0 A current to two light bulbs as shown below. What are the magnitude

### Preamble. 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

### 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

### Kirchhoff's Rules and Applying Them

[ Assignment View ] [ Eðlisfræði 2, vor 2007 26. DC Circuits Assignment is due at 2:00am on Wednesday, February 21, 2007 Credit for problems submitted late will decrease to 0% after the deadline has passed.

### Kirchhoff 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,

### Objectives. to understand how to use a voltmeter to measure voltage

UNIT 10 MEASUREMENTS OF VOLTAGE (from Lillian C. McDermott and the Physics Education Group, Physics by Inquiry Volume II, John Wiley and Sons, NY, 1996) Objectives to understand how to use a voltmeter

### Chapter 7 Direct-Current Circuits

Chapter 7 Direct-Current Circuits 7. Introduction...7-7. Electromotive Force...7-3 7.3 Resistors in Series and in Parallel...7-5 7.4 Kirchhoff s Circuit Rules...7-7 7.5 Voltage-Current Measurements...7-9

### 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.

### Recitation 6 Chapter 21

Recitation 6 hapter 21 Problem 35. Determine the current in each branch of the circuit shown in Figure P21.35. 3. Ω 5. Ω 1. Ω 8. Ω 1. Ω ɛ 2 4 12 Let be the current on the left branch (going down), be the

### Physics Worksheet Electric Circuits Section: Name: Series Circuits

Do Now: (1) What is electric circuit? (2) Convert the following picture into schematic diagram. Series Circuits 4. Label every component of the circuit; identify each of the voltage and current. 5. Relation

Chapter 23 Circuits Topics: Circuits containing multiple elements Series and parallel combinations RC circuits Electricity in the nervous system Reading Quiz 1. The bulbs in the circuit below are connected.

### Analysis 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

### Series and Parallel Resistive Circuits

Series and Parallel Resistive Circuits The configuration of circuit elements clearly affects the behaviour of a circuit. Resistors connected in series or in parallel are very common in a circuit and act

### Chapter 19 DC Circuits

Lecture PowerPoints Chapter 19 Physics: Principles with Applications, 6 th edition Giancoli Chapter 19 DC Circuits 2005 Pearson Prentice Hall This work is protected by United States copyright laws and

### Schematic diagrams depict the construction of a circuit Uses symbols to represent specific circuit elements Documents how elements are connected so

Circuits Schematic diagrams depict the construction of a circuit Uses symbols to represent specific circuit elements Documents how elements are connected so that anyone reading diagram can understand the

### Note-A-Rific: Characteristics

Note-A-Rific: Characteristics Any path along which electrons can flow is a circuit. For a continuous flow of electrons, there must be a complete circuit with no gaps. A gap is usually an electric switch

### Electrostatics. Electrostatics Version 2

1. A 150-watt lightbulb is brighter than a 60.-watt lightbulb when both are operating at a potential difference of 110 volts. Compared to the resistance of and the current drawn by the 150-watt lightbulb,

### Node and Mesh Analysis

Node and Mesh Analysis 1 Copyright ODL Jan 2005 Open University Malaysia Circuit Terminology Name Definition Node Essential node Path Branch Essential Branch Loop Mesh A point where two ore more branches

### Answer, Key Homework 11 David McIntyre 1 1 A

nswer, Key Homework 11 avid Mcntyre 1 This print-out should have 36 questions, check that it is complete. Multiple-choice questions may continue on the next column or page: find all choices before making

### EMF and Terminal Voltage Resistors in Series and Parallel Kirchhoff s Rules EMFs in Series and Parallel; Charging a Battery Circuits with Capacitors

Chapter 19 DC Electrical Circuits Topics in Chapter 19 EMF and Terminal Voltage Resistors in Series and Parallel Kirchhoff s Rules EMFs in Series and Parallel; Charging a Battery Circuits with Capacitors

### 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

### 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

### Experiment #6, Series and Parallel Circuits, Kirchhoff s Laws

Physics 182 Spring 2013 Experiment #6 1 Experiment #6, 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

### Lab 4 Series and Parallel Resistors

Lab 4 Series and Parallel Resistors What You Need To Know: (a) (b) R 3 FIGURE - Circuit diagrams. (a) and are in series. (b) and are not in series. The Physics Last week you examined how the current and

### Kirchhoff'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

### CHAPTER 19: DC Circuits. Answers to Questions

HAPT 9: D ircuits Answers to Questions. The birds are safe because they are not grounded. Both of their legs are essentially at the same voltage (the only difference being due to the small resistance of

### Direct-Current Circuits

8 Direct-Current Circuits Clicker Questions Question N.0 Description: Understanding circuits with parallel resistances. Question A battery is used to light a bulb as shown. A second bulb is connected by

### 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

### Chapter 18: Circuits and Circuit Elements 1. Schematic diagram: diagram that depicts the construction of an electrical apparatus

Chapter 18: Circuits and Circuit Elements 1 Section 1: Schematic Diagrams and Circuits Schematic Diagrams Schematic diagram: diagram that depicts the construction of an electrical apparatus Uses symbols

### Series and Parallel. How we wire the world

Series and Parallel How we wire the world Series vs Parallel Circuits Series Circuit Electrons only have one path to flow through. Parallel Circuit There are MULTIPLE paths for the current to flow through.

### Module 2. DC Circuit. Version 2 EE IIT, Kharagpur

Module 2 DC Circuit Lesson 5 Node-voltage analysis of resistive circuit in the context of dc voltages and currents Objectives To provide a powerful but simple circuit analysis tool based on Kirchhoff s

### 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

### Figure 1. Experiment 3 The students construct the circuit shown in Figure 2.

Series and Parallel Circuits When two or more devices are connected to a battery in a circuit, there are a couple of methods by which they can be connected. One method is called a series connection and

### 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

### 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

### Chapter 7. DC Circuits

Chapter 7 DC Circuits 7.1 Introduction... 7-3 Example 7.1.1: Junctions, branches and loops... 7-4 7.2 Electromotive Force... 7-5 7.3 Electrical Energy and Power... 7-9 7.4 Resistors in Series and in Parallel...

### Section 9: Resistors in Series and Parallel

Section 9: esistors in Series and Parallel In other words, if resistors are connected in series the total resistance is equal to the sum of the individual resistors. If all resistors have the same value

### 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

### Student Content Brief Advanced Level

Student Content Brief Advanced Level Electric Circuits Background Information There are a variety of forces acting on the body of the Sea Perch. One important force is pushing electrons through the wires

### Chapter 11- Electricity

Chapter 11- Electricity Course Content Definition of Electricity Circuit Diagrams Series and Parallel Circuits Calculating total resistances Measurement of Electricity Ammeters and Voltmeters Ohm s Law

### Ch. 20 Electric Circuits

Ch. 0 Electric Circuits 0. Electromotive Force Every electronic device depends on circuits. Electrical energy is transferred from a power source, such as a battery, to a device, say a light bulb. Conducting

### 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.

### R A _ + Figure 2: DC circuit to verify Ohm s Law. R is the resistor, A is the Ammeter, and V is the Voltmeter. A R _ +

Physics 221 Experiment 3: Simple DC Circuits and Resistors October 1, 2008 ntroduction n this experiment, we will investigate Ohm s Law, and study how resistors behave in various combinations. Along the

### Series 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)

### Physics 227: Lecture 10 Circuits, EMF, Power

Physics 227: Lecture 10 Circuits, EMF, Power Lecture 9 review: Current continuous, charge does not build up I = neav d t/ t = neav d. ρ = E/j. V = IR. Conductor resistivity increases with temperature,

### Chapter 2. Circuit Analysis Techniques

Chapter 2 Circuit Analysis Techniques 1 Objectives To formulate the node-voltage equations. To solve electric circuits using the node voltage method. To introduce the mesh current method. To formulate

### Science AS90191 Describe Aspects of Physics.

Circuits and components Science AS90191 Describe Aspects of Physics. An electric current is the movement of electrons (negatively charged particles). A circuit is made up of components connected together

### Circuit 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

### TOPIC 3.1: ELECTRIC CIRCUITS

TOPIC 3.1: ELECTRIC CIRCUITS S4P-3-1 S4P-3-2 S4P-3-3 S4P-3-4 S4P-3-5 S4P-3-6 Describe the origin of conventional current and relate its direction to the electron flow in a conductor. Describe the historical

### Time dependent circuits - The RC circuit

Time dependent circuits - The circuit Example 1 Charging a Capacitor- Up until now we have assumed that the emfs and resistances are constant in time, so that all potentials, currents and powers are constant

### Chapter 26. Capacitance and Dielectrics

Chapter 26 Capacitance and Dielectrics Capacitors Capacitors are devices that store electric charge Examples where capacitors are used: radio receivers filters in power supplies energy-storing devices

### 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:.

### Nodal and Loop Analysis

Nodal and Loop Analysis The process of analyzing circuits can sometimes be a difficult task to do. Examining a circuit with the node or loop methods can reduce the amount of time required to get important

### Two kinds of electrical charges

ELECTRICITY NOTES Two kinds of electrical charges Positive charge Negative charge Electrons are negatively charged Protons are positively charged The forces from positive charges are canceled by forces

### Chapter 21 Electric Current and Direct-Current Circuit

Chapter 2 Electric Current and Direct-Current Circuit Outline 2- Electric Current 2-2 Resistance and Ohm s Law 2-3 Energy and Power in Electric Circuit 2-4 Resistance in Series and Parallel 2-5 Kirchhoff

### CHAPTER 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

### 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.

### Shining a Light. Design & Technology. Year 9. Structure of an electric torch. Shining a Light

Looking at electronic circuits and what is meant by current, voltage, and resistance. Shining a Light Have you ever taken an electric torch to pieces to find out how it works? Look at the diagram below

### 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

### Which Bulb Burns Brighter? One is a 60-watt bulb and the other a 100-watt bulb, and they are connected in an electric circuit.

Which Bulb Burns Brighter? One is a 60-watt bulb and the other a 100-watt bulb, and they are connected in an electric circuit. Look at the text on page 541 for the answer. CHPTE 23 Series and Parallel

### Experiment 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

### Kirchhoff s Voltage Law and RC Circuits

Kirchhoff s oltage Law and RC Circuits Apparatus 2 1.5 batteries 2 battery holders DC Power Supply 1 multimeter 1 capacitance meter 2 voltage probes 1 long bulb and 1 round bulb 2 sockets 1 set of alligator

### Project 4: Introduction to Circuits The attached Project was prepared by Professor Yih-Fang Huang from the department of Electrical Engineering.

Project 4: Introduction to Circuits The attached Project was prepared by Professor Yih-Fang Huang from the department of Electrical Engineering. The examples given are example of basic problems that you

### Module 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

### Chapter 27 = J. U = 120Ah 3600s 1h. Now we compute how long we can deliver a power of 100 W with this energy available.

Chapter 7 7. A certain car battery with 1.0 V emf has an initial carge of 10 A h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how many

### Pre-Lab 7 Assignment: Capacitors and RC Circuits

Name: Lab Partners: Date: Pre-Lab 7 Assignment: Capacitors and RC Circuits (Due at the beginning of lab) Directions: Read over the Lab Handout and then answer the following questions about the procedures.

### CURRENT ELECTRICITY - I

CURRNT LCTRCTY - 1. lectric Current 2. Conventional Current 3. Drift elocity of electrons and current 4. Current Density 5. Ohm s Law 6. Resistance, Resistivity, Conductance & Conductivity 7. Temperature

### 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

### 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

### The current that flows is determined by the potential difference across the conductor and the resistance of the conductor (Ohm s law): V = IR P = VI

PHYS1000 DC electric circuits 1 Electric circuits Electric current Charge can move freely in a conductor if an electric field is present; the moving charge is an electric current (SI unit is the ampere

### 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

### 6 P Parallel Circuits

6 P Parallel Circuits 6. NTRODUCTON Two network configurations, series and parallel, form the framework for some of the most complex network structures. A clear understanding of each will pay enormous

### UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering

UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering EXPERIMENT 5 PARALLEL AND SERIES-PARALLEL CIRCUIT CHARACTERISTICS OBJECTIVES This experiment will have the student

### 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

### 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

### Capacitance, Resistance, DC Circuits

This test covers capacitance, electrical current, resistance, emf, electrical power, Ohm s Law, Kirchhoff s Rules, and RC Circuits, with some problems requiring a knowledge of basic calculus. Part I. Multiple

### Lesson Plan. Parallel Resistive Circuits Part 1 Electronics

Parallel Resistive Circuits Part 1 Electronics Lesson Plan Performance Objective At the end of the lesson, students will demonstrate the ability to apply problem solving and analytical techniques to calculate

### 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

### 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

### Components in Series, Parallel, and Combination

Components in Series, Parallel, and Combination Kirchoff s Laws VOLTAGE LAW: A series circuit of voltages across the various components must add up to be equal to the voltage applied to the circuit. CURRENT

### 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

### Experiment: Series and Parallel Circuits

Phy203: General Physics Lab page 1 of 6 Experiment: Series and Parallel Circuits OBJECTVES MATERALS To study current flow and voltages in series and parallel circuits. To use Ohm s law to calculate equivalent

### 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

### DC Circuits (Combination of resistances)

Name: Partner: Partner: Partner: DC Circuits (Combination of resistances) EQUIPMENT NEEDED: Circuits Experiment Board One Dcell Battery Wire leads Multimeter 100, 330, 1k resistors Purpose The purpose

### DC 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/,