Physics Experiment 9 Ohm s Law

Size: px
Start display at page:

Download "Physics Experiment 9 Ohm s Law"

Transcription

1 Fig. 9-1 Simple Series Circuit Equipment: Universal Circuit Board Power Supply 2 DMM's (Digital Multi-Meters) with Leads 150- Resistor 330- Resistor 560- Resistor Unknown Resistor Miniature Light Bulb and Socket 2 Jumpers Wire Leads 33

2 Advance Reading Urone, Ch through Appendix B Computers and Software Appendix C Equipment: DMM Objective: The objective of this lab is to determine the resistance of several resistors by applying. Students will also be introduced to the resistor color code. Theory: Ohm s law states that the current, I, that flows in a circuit is directly proportional to the voltage, V, across the resistance, R, of the circuit, or in mathematical form: I = V R (Eq. 9-1) The current flow through a resistor will be measured when the voltage across the resistor is varied. From this data, the resistance is determined. The current is measured using a DMM, set up as an ammeter (Fig C-11). The potential difference (voltage) will be measured with a second DMM, set up as a voltmeter (Fig C-9). Ammeters are connected in series, so that the current is through them. See Fig C-15. The ideal ammeter has a resistance of zero so that it has no effect on the circuit. In reality, ammeters have a small internal resistance. Voltmeters are connected in parallel to resistive elements in the circuit so that it measures the potential difference across (on each side of) the element. See Fig. C-12. The ideal voltmeter has infinite internal resistance. In reality, it is approximately 10 6, so that only a minuscule amount of current is allowed through the voltmeter. This keeps the voltmeter from becoming an alternate path of current flow around the circuit element being measured. Ohmmeter set-up is explained in Fig. C- 10. Resistance measurements are explained in Fig. C-13 and Fig. C

3 Resistor Color Code There is a color code used to identify the resistance value of a resistor (Fig. 9-2). The first two color bands give the first two digits of the value. The third band gives the multiplier for the first two in powers of ten. The last color is the tolerance. For example, a resistor that has two red bands and a black multiplier band (Fig. 9-3) has a resistance of 22. The figures below give the color code. Using the color code, determine the resistance and tolerance of each resistor. Record the values. Color Number Multiplier Black Brown Red Orange Yellow Green Blue Violet Gray White Tolerance First Digit Multiplier Gold 5% Silver 10% no band 20% Fig. 9-3 Second Digit Tolerance Fig

4 Procedure: 1. Make a simple series circuit with the 150- resistor using the power supply, ammeter, jumpers, and wire leads. Refer to Fig Have the circuit approved by your instructor before plugging in the power supply! Turn off the power supply before you plug it in. CAUTION: NEVER HOOK AN AMMETER IN PARALLEL WITH A POWER SUPPLY. IT HAS A RESISTANCE CLOSE TO ZERO AND COULD BE DAMAGED v Power Supply - R A Fig Plug in the power supply and adjust the voltage until the voltmeter reads a 1.0V potential difference across the resistor. Measure the current at this voltage. 3. Increase the voltage in 1.0V increments up to 6.0V, measuring the current through the resistor at each voltage level. Record current in amperes, A, and potential difference in volts, V. 4. Repeat this procedure for the 330-, 560-, and unknown resistors. 5. Graph I vs. V for each of the resistors on the same graph using Graphical Analysis (Appendix B: Computers and Software). The slope of the line can be analyzed by the software. Label your graph and slopes appropriately. Print screen. From these slopes, calculate the resistance, R, for each resistor. Show your work at the bottom of the graph. 6. Measure the resistance of each resistor using the ohmmeter. (The DMM provides a potential difference between the leads and measures the amount of current through the resistance: I = V/R.) 7. Construct a series circuit using the light bulb and socket. Measure the current as you increase the voltage by 0.2V up to 2.0V, then by 1.0V increments up to 5.0V. Plot a new graph of I vs. V for the light bulb; 36

5 connect each data point with a curve fit. Does this curve have a constant slope or a constantly changing slope? Questions 8. Is the graph of I vs. V for the light bulb linear? What does this tell you about the resistance of a lightbulb as the filament gets hotter? 1. Calculate the percent difference between the color code value and the experimental value for each resistor. Do these values fall within the tolerance of the resistors? If not, what might be the reason for this? 2. What is the value of the unknown resistor as determined from the graph? Compare the value obtained from the graph to the ohmmeter value. 3. The resistors used in this experiment are 2-watt resistors. What is the maximum power output of the 150- resistor when 12.0V is applied across it? 4. The power output of a circuit is given by P=i 2 R = V 2 R = iv (Eq. 9-2) Calculate the power output of each resistive element (graph value) when a potential of 6.0V is applied. 5. Verify, using dimensional analysis, that each part of Eq is equal to J/s. What are the units of power output? (Use only the units provided in Table 18-3 of Giancoli.) 37

34.5 Electric Current: Ohm s Law OHM, OHM ON THE RANGE. Purpose. Required Equipment and Supplies. Discussion. Procedure

34.5 Electric Current: Ohm s Law OHM, OHM ON THE RANGE. Purpose. Required Equipment and Supplies. Discussion. Procedure Name Period Date CONCEPTUAL PHYSICS Experiment 34.5 Electric : Ohm s Law OHM, OHM ON THE RANGE Thanx to Dean Baird Purpose In this experiment, you will arrange a simple circuit involving a power source

More information

LAB 7. SERIES AND PARALLEL RESISTORS

LAB 7. SERIES AND PARALLEL RESISTORS Name: LAB 7. SERIES AND PARALLEL RESISTORS Problem How do you measure resistance, voltage, and current in a resistor? How are these quantities related? What is the difference between a series circuit and

More information

Electronics Technology and Robotics I Week 2 Basic Electrical Meters and Ohm s Law

Electronics Technology and Robotics I Week 2 Basic Electrical Meters and Ohm s Law Electronics Technology and Robotics I Week 2 Basic Electrical Meters and Ohm s Law Administration: o Prayer o Bible Verse o Turn in quiz Meters: o Terms and Definitions: Analog vs. Digital Displays: Analog

More information

LABORATORY 2 MEASUREMENTS IN RESISTIVE NETWORKS AND CIRCUIT LAWS

LABORATORY 2 MEASUREMENTS IN RESISTIVE NETWORKS AND CIRCUIT LAWS LABORATORY 2 MEASUREMENTS IN RESISTIVE NETWORKS AND CIRCUIT LAWS The objective of this experiment is to provide working knowledge of the ammeter, voltmeter, and ohmmeter as well as their limitations in

More information

EXPERIMENT - 1 OHM S LAW

EXPERIMENT - 1 OHM S LAW NOTE: While you copy the practical record see that you are following the note. Write Aim, theory, materials required, procedure, results, discussion and precautions on the right side of your record. While

More information

10/23/2016. Circuit Diagrams. Circuit Diagrams. Circuit Elements

10/23/2016. Circuit Diagrams. Circuit Diagrams. Circuit Elements Circuit Diagrams The top figure shows a literal picture of a resistor and a capacitor connected by wires to a battery. The bottom figure is a circuit diagram of the same circuit. A circuit diagram is a

More information

Lab 2 Electrical Measurements and Ohm s Law

Lab 2 Electrical Measurements and Ohm s Law Lab 2 Electrical Measurements and Ohm s Law Safety and Equipment No special safety precautions are necessary for this lab. Computer with PASCO Capstone, PASCO 850 Universal Interface Double banana/alligator

More information

PHY222 Lab 4 Ohm s Law and Electric Circuits Ohm s Law; Series Resistors; Circuits Inside Three- and Four-Terminal Black Boxes

PHY222 Lab 4 Ohm s Law and Electric Circuits Ohm s Law; Series Resistors; Circuits Inside Three- and Four-Terminal Black Boxes PHY222 Lab 4 Ohm s Law and Electric Circuits Ohm s Law; Series Resistors; Circuits Inside Three- and Four-Terminal Black Boxes Print Your Name Print Your Partners' Names Instructions February 8, 2017 Before

More information

EXPERIMENT 4 OHM S LAW, RESISTORS IN SERIES AND PARALLEL

EXPERIMENT 4 OHM S LAW, RESISTORS IN SERIES AND PARALLEL 220 4- I. THEOY EXPEIMENT 4 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

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

Figure 1: (a) cables with alligator clips and (b) cables with banana plugs.

Figure 1: (a) cables with alligator clips and (b) cables with banana plugs. Ohm s Law Safety and Equipment Computer with PASCO Capstone, PASCO 850 Universal Interface Double banana/alligator Cable, 2 Alligator Wires PASCO Voltage Sensor Cable Multimeter with probes. Rheostat Ruler

More information

16.3 Ohm s Law / Energy and Power / Electric Meters

16.3 Ohm s Law / Energy and Power / Electric Meters 16.3 Ohm s Law / Energy and Power / Electric Meters Voltage Within a battery, a chemical reaction occurs that transfers electrons from one terminal to another terminal. This potential difference across

More information

I Ish. Figure 2 Ammeter made from galvanometer and shunt resistor.

I Ish. Figure 2 Ammeter made from galvanometer and shunt resistor. Page 1/6 Revision 2 1-Jun-10 OBJECTIVES Understand the galvanometer and its limitations. Use circuit laws to build a suitable ammeter and voltmeter from the galvanometer. Understand the loading effect

More information

Ohm s Law. 1-Introduction: General Physics Laboratory (PHY119) Basic Electrical Concepts:

Ohm s Law. 1-Introduction: General Physics Laboratory (PHY119) Basic Electrical Concepts: Ohm s Law General Physics Laboratory (PHY119) 1-Introduction: Basic Electrical Concepts: 1- Current (I): Is the flow of electrons through a conductor or semiconductor. For current to flow, it requires

More information

Experiment 3: Ohm s Law; Electric Power. Don t take circuits apart until the instructor says you don't need to double-check anything.

Experiment 3: Ohm s Law; Electric Power. Don t take circuits apart until the instructor says you don't need to double-check anything. Experiment 3: Ohm s Law; Electric Power. How to use the digital meters: You have already used these for DC volts; turn the dial to "DCA" instead to get DC amps. If the meter has more than two connectors,

More information

7. How long must a 100-watt light bulb be used in order to dissipate 1,000 joules of electrical energy? 1) 10 s 3) 1,000 s 2) 100 s 4) 100,000 s

7. How long must a 100-watt light bulb be used in order to dissipate 1,000 joules of electrical energy? 1) 10 s 3) 1,000 s 2) 100 s 4) 100,000 s 1. Which quantity must be the same for each component in any series circuit? 1) power 3) current 2) resistance 4) voltage 2. A student needs a 4-ohm resistor to complete a circuit. Only a large quantity

More information

Series and Parallel Circuits Virtual Lab

Series and Parallel Circuits Virtual Lab Series and Parallel Circuits Virtual Lab Learning Goals: Students will be able to Discuss basic electricity relationships Discuss basic electricity relationships in series and parallel circuits Build series,

More information

PHYSICS MCQ (TERM-1) BOARD PAPERS

PHYSICS MCQ (TERM-1) BOARD PAPERS GRADE: 10 PHYSICS MCQ (TERM-1) BOARD PAPERS 1 The number of division in ammeter of range 2A is 10 and voltmeter of range 5 V is 20. When the switch of the circuit given below is closed, ammeter reading

More information

Your Name Lab Section

Your Name Lab Section Pre-Lab Quiz / PHYS 224 Ohm s Law and Resistivity Your Name Lab Section 1. What do you investigate in this lab? 2. When 1.0-A electric current flows through a piece of cylindrical copper wire, the voltage

More information

Pre-lab Quiz/PHYS 224 Ohm s Law and Resistivity. Your name Lab section

Pre-lab Quiz/PHYS 224 Ohm s Law and Resistivity. Your name Lab section Pre-lab Quiz/PHYS 224 Ohm s Law and Resistivity Your name Lab section 1. What do you investigate in this lab? 2. When 1.0-A electric current flows through a piece of cylindrical copper wire, the voltage

More information

Circuits-Circuit Analysis

Circuits-Circuit Analysis Base your answers to questions 1 through 3 on the information and diagram below. 4. A 9-volt battery is connected to a 4-ohm resistor and a 5-ohm resistor as shown in the diagram below. A 3.0-ohm resistor,

More information

Goals. Introduction (4.1) R = V I

Goals. Introduction (4.1) R = V I Lab 4. Ohm s Law Goals To understand Ohm s law, used to describe behavior of electrical conduction in many materials and circuits. To calculate electrical power dissipated as heat. To understand and use

More information

INVESTIGATION ONE: WHAT DOES A VOLTMETER DO? How Are Values of Circuit Variables Measured?

INVESTIGATION ONE: WHAT DOES A VOLTMETER DO? How Are Values of Circuit Variables Measured? How Are Values of Circuit Variables Measured? INTRODUCTION People who use electric circuits for practical purposes often need to measure quantitative values of electric pressure difference and flow rate

More information

Laboratory 2 Electronics Engineering 1270

Laboratory 2 Electronics Engineering 1270 Laboratory 2 Electronics Engineering 1270 DC Test Equipment Purpose: This lab will introduce many of the fundamental test equipment and procedures used for verifying the operations of electrical circuits.

More information

APPARATUS AND MATERIAL REQUIRED Resistor, ammeter, (0-1.5A) voltmeter (0-5V ), battery, one way key, rheostat, sand paper, connecting wires.

APPARATUS AND MATERIAL REQUIRED Resistor, ammeter, (0-1.5A) voltmeter (0-5V ), battery, one way key, rheostat, sand paper, connecting wires. ACTIVITIES ACTIVITY 1 AIM To assemble the components of a given electrical circuit. APPARATUS AND MATERIAL REQUIRED Resistor, ammeter, (0-1.5A) voltmeter (0-5V ), battery, one way key, rheostat, sand paper,

More information

General Electrical Information

General Electrical Information Memorial University of Newfoundland Department of Physics and Physical Oceanography Physics 2055 Laboratory General Electrical Information Breadboards The name breadboard comes from the days when electrical

More information

Batteries n Bulbs: Voltage, Current and Resistance (8/6/15) (approx. 2h)

Batteries n Bulbs: Voltage, Current and Resistance (8/6/15) (approx. 2h) Batteries n Bulbs: Voltage, Current and Resistance (8/6/15) (approx. 2h) Introduction A simple electric circuit can be made from a voltage source (batteries), wires through which current flows and a resistance,

More information

Chapter 26 DC Circuits

Chapter 26 DC Circuits Chapter 26 DC Circuits Electric circuit needs battery or generator to produce current these are called sources of emf. Battery is a nearly constant voltage source, but does have a small internal resistance,

More information

Chapter 26 DC Circuits. Copyright 2009 Pearson Education, Inc.

Chapter 26 DC Circuits. Copyright 2009 Pearson Education, Inc. Chapter 26 DC Circuits 26-1 EMF and Terminal Voltage Electric circuit needs battery or generator to produce current these are called sources of emf. Battery is a nearly constant voltage source, but does

More information

Unit 9. (Filled In) Draw schematic circuit diagrams for resistors in series and in parallel

Unit 9. (Filled In) Draw schematic circuit diagrams for resistors in series and in parallel Name: Date: Period: Unit 9 Series & Parallel Circuits (Filled In) Essential Questions: Does adding resistors to a circuit always reduce current? Does adding more light bulbs to a circuit always make them

More information

Sharjah Indian School Sharjah Boys Wing

Sharjah Indian School Sharjah Boys Wing Read the instructions given below carefully before writing the fair record book. The following details are to be written on the LEFT HAND SIDE of the book. CIRCUIT DIAGRAM CALCULATIONS The remaining details

More information

Mandatory Experiment: Electric conduction

Mandatory Experiment: Electric conduction Name: Class: Mandatory Experiment: Electric conduction In this experiment, you will investigate how different materials affect the brightness of a bulb in a simple electric circuit. 1. Take a battery holder,

More information

Lab #1: Electrical Measurements I Resistance

Lab #1: Electrical Measurements I Resistance Lab #: Electrical Measurements I esistance Goal: Learn to measure basic electrical quantities; study the effect of measurement apparatus on the quantities being measured by investigating the internal resistances

More information

Essential Electricity Homework Exercise 1

Essential Electricity Homework Exercise 1 Homework Exercise 1 1. For each of the following electrical symbols, copy the symbol into you jotter and label it using the words below. Word bank resistor, voltmeter, battery, ammeter, bulb V A 2. State

More information

Name: Base your answer to the question on the information below and on your knowledge of physics.

Name: Base your answer to the question on the information below and on your knowledge of physics. Name: Figure 1 Base your answer to the question on the information below and on your knowledge of physics. A student constructed a series circuit consisting of a 12.0-volt battery, a 10.0-ohm lamp, and

More information

AP Physics B Ch 18 and 19 Ohm's Law and Circuits

AP Physics B Ch 18 and 19 Ohm's Law and Circuits Name: Period: Date: AP Physics B Ch 18 and 19 Ohm's Law and Circuits MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A device that produces electricity

More information

Write the term that correctly completes the statement. Use each term once. ampere. electric current. resistor battery.

Write the term that correctly completes the statement. Use each term once. ampere. electric current. resistor battery. Date Period Name CHAPTER 22 Study Guide Current Electricity Vocabulary Review Write the term that correctly completes the statement. Use each term once. ampere electric current resistor battery kilowatt-hour

More information

Reading on meter (set to ohms) when the leads are NOT touching

Reading on meter (set to ohms) when the leads are NOT touching Industrial Electricity Name Due next week (your lab time) Lab 1: Continuity, Resistance Voltage and Measurements Objectives: Become familiar with the terminology used with the DMM Be able to identify the

More information

UNIT 3: GENErAL ELECTriCAL SySTEM DiAGNOSiS

UNIT 3: GENErAL ELECTriCAL SySTEM DiAGNOSiS Electrical/Electronic Systems UNIT 3: GENErAL ELECTriCAL SySTEM DiAGNOSiS LESSON 3: TEST electrical circuits I. Types of electrical circuit tests and electrical faults A. Different types of electrical

More information

Section 6 HOW ARE VALUES OF CIRCUIT VARIABLES MEASURED?

Section 6 HOW ARE VALUES OF CIRCUIT VARIABLES MEASURED? Section 6 HOW RE VUES OF CIRCUIT VRIBES MESURED? INTRODUCTION People who use electric circuits for practical purposes often need to measure quantitative values of electric pressure difference and flow

More information

Metal Film MELF Resistors

Metal Film MELF Resistors FEATURES SURFACE MOUNT IN SIZES 0102 (0805), 0204 (1406) AND 0207 (2410) AVAILABLE IN PRECISION TOLERANCE AND TC (TO ±0.1% TOL. AND ±10PPM TC) ALL SIZES ARE AVAILABLE IN TAPE/REEL FOR AUTOMATIC MOUNTING

More information

SOURCES OF EMF AND KIRCHHOFF S LAWS

SOURCES OF EMF AND KIRCHHOFF S LAWS SOURCES OF EMF AND KIRCHHOFF S LAWS VERY SHORT ANSWER QUESTIONS 1. What is the SI unit of (i) emf (ii) terminal potential difference? 2. When an ammeter is put in series in a circuit, does it read slightly

More information

Lecture PowerPoints. Chapter 19 Physics: Principles with Applications, 6 th edition Giancoli

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

More information

Chapter 3. ECE Tools and Concepts

Chapter 3. ECE Tools and Concepts Chapter 3 ECE Tools and Concepts 31 CHAPTER 3. ECE TOOLS AND CONCEPTS 3.1 Section Overview This section has four exercises. Each exercise uses a prototyping board for building the circuits. Understanding

More information

CHAPTER 19 DC Circuits Units

CHAPTER 19 DC Circuits Units CHAPTER 19 DC Circuits Units EMF and Terminal Voltage Resistors in Series and in Parallel Kirchhoff s Rules EMFs in Series and in Parallel; Charging a Battery Circuits Containing Capacitors in Series and

More information

A device that measures the current in a circuit. It is always connected in SERIES to the device through which it is measuring current.

A device that measures the current in a circuit. It is always connected in SERIES to the device through which it is measuring current. Goals of this second circuit lab packet: 1 to learn to use voltmeters an ammeters, the basic devices for analyzing a circuit. 2 to learn to use two devices which make circuit building far more simple:

More information

This appendix gives you a general introduction to what electricity is

This appendix gives you a general introduction to what electricity is C5865_App B_CTP.qxd 24/09/2006 01:50 PM Page 1215 APPENDIX B Electricity and Multimeters This appendix gives you a general introduction to what electricity is and how it is measured. In addition, you will

More information

11.1 CURRENT ELECTRICITY. Electrochemical Cells (the energy source) pg Wet Cell. Dry Cell. Positive. Terminal. Negative.

11.1 CURRENT ELECTRICITY. Electrochemical Cells (the energy source) pg Wet Cell. Dry Cell. Positive. Terminal. Negative. Date: SNC1D: Electricity 11.1 CURRENT ELECTRICITY Define: CIRCUIT: path that electrons follow. CURRENT ELECTRICITY: continuous flow of electrons in a circuit LOAD: device that converts electrical energy

More information

Laboratory 5: Electric Circuits Prelab

Laboratory 5: Electric Circuits Prelab Phys 132L Fall 2018 Laboratory 5: Electric Circuits Prelab 1 Current and moving charges Atypical currentinanelectronic devicemightbe5.0 10 3 A.Determinethenumber of electrons that pass through the device

More information

SC10F Circuits Lab Name:

SC10F Circuits Lab Name: SC10F Circuits Lab Name: Purpose: In this lab you will be making, both, series and parallel circuits. You will then be using a millimeter to take readings at various points in these circuits. Using these

More information

INDIAN SCHOOL MUSCAT

INDIAN SCHOOL MUSCAT INDIAN SCHOOL MUSCAT Department of Physics Class:XII Physics Worksheet-3 (2018-2019) Chapter 3: Current Electricity Section A Conceptual and Application type Questions 1 Two wires of equal length, one

More information

Series and Parallel Networks

Series and Parallel Networks Series and Parallel Networks Department of Physics & Astronomy Texas Christian University, Fort Worth, TX January 17, 2014 1 Introduction In this experiment you will examine the brightness of light bulbs

More information

Which of the following statements is/are correct about the circuit above?

Which of the following statements is/are correct about the circuit above? Name: ( ) Class: Date: Electricity Exercises 1. Which of the following statements is/are correct about the circuit above? (1) Electrons flow from right to left through the bulb A. (2) Charges will be used

More information

Electricity Unit Review

Electricity Unit Review Science 9 Electricity Unit Review Name: General Definitions: Neutral Object Charge Separation Electrical Discharge Electric Current Amperes (amps) Voltage (volts) Voltmeter Ammeters Galvanometer Multimeter

More information

Equivalent Meter Resistance

Equivalent Meter Resistance Equivalent Meter Resistance This installation of N.E.R.D discusses meter resistance. The equipment referenced here is found in the Undergraduate Electronics Lab at the University of Houston. Topics covered

More information

Exam-style questions: electricity

Exam-style questions: electricity Exam-style questions: electricity Q. The diagram shows an electrical circuit. (a) Complete the two labels on the diagram. P and Q are meters. What is meter P measuring?... () What is meter Q measuring?...

More information

Digital Multimeter: This handheld device is used by this course to measure voltage and resistance we will not use this to measure current or capacitan

Digital Multimeter: This handheld device is used by this course to measure voltage and resistance we will not use this to measure current or capacitan Digital Multimeter: This handheld device is used by this course to measure voltage and resistance we will not use this to measure current or capacitance. For current you will use an analog ammeter and

More information

Student Exploration: Advanced Circuits

Student Exploration: Advanced Circuits Name: Date: Student Exploration: Advanced Circuits [Note to teachers and students: This Gizmo was designed as a follow-up to the Circuits Gizmo. We recommend doing that activity before trying this one.]

More information

What does the measure? I

What does the measure? I TOP 17 urrent Electricity 1 Which of the following is a correct unit for electrical energy? 5 The diagrams show the symbols and ranges of five meters. ampere Which meter should be used to measure a current

More information

SECTION 3 BASIC AUTOMATIC CONTROLS UNIT 15 Troubleshooting Basic Controls

SECTION 3 BASIC AUTOMATIC CONTROLS UNIT 15 Troubleshooting Basic Controls SECTION 3 BASIC AUTOMATIC CONTROLS UNIT 15 Troubleshooting Basic Controls UNIT OBJECTIVES After studying this unit, the reader should be able to Describe and identify power- and non-power-consuming Describe

More information

Technical Workshop: Electrical December 3, 2016

Technical Workshop: Electrical December 3, 2016 Technical Workshop: Electrical December 3, 2016 ELECTRICAL: CIRCUITS Key terms we will be using today: Voltage (V): The difference in electrical potential at one point in a circuit in relation to another.

More information

PhysicsAndMathsTutor.com 1

PhysicsAndMathsTutor.com 1 Q1. A battery of emf 9.0 V and internal resistance, r, is connected in the circuit shown in the figure below. (a) The current in the battery is 1.0 A. (i) Calculate the pd between points A and B in the

More information

Electric Circuits Lab

Electric Circuits Lab Electric Circuits Lab Purpose: To construct series and parallel circuits To compare the current, voltage, and resistance in series and parallel circuits To draw schematic (circuit) diagrams of various

More information

B How much voltage does a standard automobile battery usually supply?

B How much voltage does a standard automobile battery usually supply? Chapter 2 B-003-16-01 How much voltage does a standard automobile battery usually supply? 1. About 240 volts 2. About 120 volts 3. About 12 volts 4. About 9 volts B-003-16-02 Which component has a positive

More information

CHAPTER 2 ELECTRIC CIRCUIT

CHAPTER 2 ELECTRIC CIRCUIT CHAPTE 2 ELECTIC CICUIT 1 Electric charges Two kinds of charges Who carry those charges? Unit of charge 2 Flow of charge and electric current The true picture of a circuit Page 1 The conventional picture

More information

Circuit Analysis Questions A level standard

Circuit Analysis Questions A level standard 1. (a) set of decorative lights consists of a string of lamps. Each lamp is rated at 5.0 V, 0.40 W and is connected in series to a 230 V supply. Calculate the number of lamps in the set, so that each lamp

More information

Electrical Measuring Instruments

Electrical Measuring Instruments UNIT 12 Electrical Measuring Instruments Learning Objectives After studying this unit, the student will be able Understand different measuring instruments used in electricity Understand the working of

More information

SJSU ENGR 10 Wind Turbine Power Measurement Procedure

SJSU ENGR 10 Wind Turbine Power Measurement Procedure SJSU ENGR 10 Wind Turbine Power Measurement Procedure In this lab, we determine the maximum electrical power that your wind turbine can generate. This involves the use of two key components: a power meter

More information

PROPERTIES OF ELECTRIC CIRCUITS

PROPERTIES OF ELECTRIC CIRCUITS Name: PROPERTIES OF ELECTRIC CIRCUITS Date: Go to www.linville.ca and click on the page Computer Simulations or go to http://phet.colorado.edu/simulations open the Circuit Construction: DC and then click

More information

Physics Work with your neighbor. Ask me for help if you re stuck. Don t hesistate to compare notes with nearby groups.

Physics Work with your neighbor. Ask me for help if you re stuck. Don t hesistate to compare notes with nearby groups. Physics 9 2016-04-13 Work with your neighbor. Ask me for help if you re stuck. Don t hesistate to compare notes with nearby groups. Today we ll build on what we did Monday with batteries and light bulbs.

More information

Phys 202A. Lab 7 Batteries, Bulbs and Current

Phys 202A. Lab 7 Batteries, Bulbs and Current Phys 202A Lab 7 Batteries, Bulbs and Current Name Objectives: To understand how a voltage (potential difference) results in a current flow through a conductor. To learn to design and wire simple circuits

More information

Electric Circuits Exam

Electric Circuits Exam Electric Circuits Exam 1. The diagram below represents a lamp, a 10-volt battery, and a length of nichrome wire connected in series. 4. Which circuit has the smallest equivalent resistance? A) B) As the

More information

1984 Jeep CJ7. IGNITION SYSTEM - SOLID STATE' 'Distributors & Ignition Systems MOTORCRAFT SOLID STATE IGNITION (SSI)

1984 Jeep CJ7. IGNITION SYSTEM - SOLID STATE' 'Distributors & Ignition Systems MOTORCRAFT SOLID STATE IGNITION (SSI) TESTING SECONDARY CIRCUIT CHECK CAUTION: When checking secondary voltage, do not remove spark plug wires from spark plugs No. 3 on 4-cylinder, No. 1 or 5 on 6-cylinder and No. 3 or 4 on V8 Engines. 1.

More information

Electric current, resistance and voltage in simple circuits

Electric current, resistance and voltage in simple circuits Lab 6: Electric current, resistance and voltage in simple circuits Name: Group Members: Date: T s Name: pparatus: ulb board with batteries, connecting wires, two identical bulbs and a different bulb, a

More information

Academic Year

Academic Year EXCELLENCE INTERNATIONAL SCHOOL First Term, Work sheet (1) Grade (9) Academic Year 2014-2015 Subject: quantities Topics:- Static electricity - Eelectrical NAME: DATE: MULTIPLE CHOICE QUESTIONS: 1 - A circuit

More information

Physics - Chapters Task List

Physics - Chapters Task List Name Hour Physics - Chapters 34-35 Task List Task In Class? (Yes/No) Date Due Grade Lab 33.1 - Wet Cell Battery Yes */15 * Vodcast #1 Electric Circuits & Ohm s Law /21 Worksheet Concept Review #1-12, Ch

More information

All Worn Out! Measure the voltage of batteries as they discharge. Predict how different size batteries will behave when being discharged.

All Worn Out! Measure the voltage of batteries as they discharge. Predict how different size batteries will behave when being discharged. All Worn Out! Computer 43 Have you ever wondered why some flashlights use small batteries and some use big ones? What difference does it make? Do larger batteries make the light brighter? Will the size

More information

Data Sheet for Series and Parallel Circuits Name: Partner s Name: Date: Period/Block:

Data Sheet for Series and Parallel Circuits Name: Partner s Name: Date: Period/Block: Data Sheet for Series and Parallel Circuits Name: Partner s Name: Date: _ Period/Block: _ Build the two circuits below using two AAA or AA cells. Measure and record Voltage (Volts), Current (A), and Resistance

More information

Laboratory Exercise 12 THERMAL EFFICIENCY

Laboratory Exercise 12 THERMAL EFFICIENCY Laboratory Exercise 12 THERMAL EFFICIENCY In part A of this experiment you will be calculating the actual efficiency of an engine and comparing the values to the Carnot efficiency (the maximum efficiency

More information

EXPERIMENT CALIBRATION OF 1PHASE ENERGY METER

EXPERIMENT CALIBRATION OF 1PHASE ENERGY METER EXPERIMENT CALIBRATION OF PHASE ENERGY METER THEORY:- Energy Meters are integrating instruments used to measure the quantity of electrical energy supplied to a circuit in a given time. Single phase energy

More information

Newton s 2 nd Law Activity

Newton s 2 nd Law Activity Newton s 2 nd Law Activity Purpose Students will begin exploring the reason the tension of a string connecting a hanging mass to an object will be different depending on whether the object is stationary

More information

Modern Auto Tech Study Guide Chapter 8 Pages Electricity & Electronics 37 Points. Automotive Service

Modern Auto Tech Study Guide Chapter 8 Pages Electricity & Electronics 37 Points. Automotive Service Modern Auto Tech Study Guide Chapter 8 Pages 97 110 Electricity & Electronics 37 Points Automotive Service 1. is the movement of electrons ( ) from atom to atom. Every vehicle system uses some type of

More information

CHAPTER 2. Current and Voltage

CHAPTER 2. Current and Voltage CHAPTER 2 Current and Voltage The primary objective of this laboratory exercise is to familiarize the reader with two common laboratory instruments that will be used throughout the rest of this text. In

More information

Electronic Dynamo Regulator INSTRUCTION MANUAL. COPYRIGHT 2014 CLOVER SYSTEMS All Rights Reserved

Electronic Dynamo Regulator INSTRUCTION MANUAL. COPYRIGHT 2014 CLOVER SYSTEMS All Rights Reserved DRM TM DRM-HP TM Electronic Dynamo Regulator INSTRUCTION MANUAL COPYRIGHT 2014 CLOVER SYSTEMS All Rights Reserved INTRODUCTION The Clover Systems DRM is a state-of-the art all-electronic voltage and current

More information

EXPERIMENT MODULE CHEMICAL ENGINEERING EDUCATION LABORATORY BATTERY (BAT)

EXPERIMENT MODULE CHEMICAL ENGINEERING EDUCATION LABORATORY BATTERY (BAT) EXPERIMENT MODULE CHEMICAL ENGINEERING EDUCATION LABORATORY BATTERY CHEMICAL ENGINEERING DEPARTMENT FACULTY OF INDUSTRIAL TECHNOLOGY INSTITUT TEKNOLOGI BANDUNG 2018 Contributor: Dr. Isdiriayani Nurdin,

More information

Happy Friday! Do this now:

Happy Friday! Do this now: Happy Friday! Do this now: Take all three AA batteries out of your kit, and put (only!) two of them in the holder. (Keep the third one handy.) Take your digital multimeter out of its packaging, as well

More information

Lab 9: Faraday s and Ampere s Laws

Lab 9: Faraday s and Ampere s Laws Lab 9: Faraday s and Ampere s Laws Introduction In this experiment we will explore the magnetic field produced by a current in a cylindrical coil of wire, that is, a solenoid. In the previous experiment

More information

University of TN Chattanooga Physics 1040L 8/28/2012

University of TN Chattanooga Physics 1040L 8/28/2012 PHYSICS 1040L LAB 5: MAGNETIC FIELD Objectives: 1. Determine the relationship between magnetic field and the current in a solenoid. 2. Determine the relationship between magnetic field and the number of

More information

Work done and Moment. When using the equipment, John wants to do 300J of work in each lift.

Work done and Moment. When using the equipment, John wants to do 300J of work in each lift. Yr 11 Physics worksheet Paper 2 Work done and Moment Q1) The diagram shows weightlifting equipment found in most gyms. When using the equipment, John wants to do 300J of work in each lift. He can vary

More information

RENEWABLE ENERGY TRAINER

RENEWABLE ENERGY TRAINER RENEWABLE ENERGY TRAINER Our most advanced training platform, for your most advanced experiments. Explores the cutting-edge science behind renewable energy engineering Features dozens of customizable expansion

More information

Unit 10 Measuring Instruments

Unit 10 Measuring Instruments Objectives: Unit 10 Discuss the operation of a d Arsonval meter movement. Connect a voltmeter to a circuit. Read an analog multimeter. Connect an ammeter. Measure resistance using an ohmmeter. Analog meters

More information

HVACR Electrical Systems

HVACR Electrical Systems HVACR Electrical Systems to The following HVAC Excellence competencies (rev. 2007) are covered in this publication. Only the covered compentencies are listed. The first column identifies the competency

More information

PAPER 2 THEORY QUESTIONS

PAPER 2 THEORY QUESTIONS PAPER 2 THEORY QUESTIONS 1 A plastic rod is rubbed with a cloth and becomes negatively charged. (a) Explain how the rod becomes negatively charged when rubbed with a cloth... [2] (b) An uncharged metal-coated

More information

Principles and types of analog and digital ammeters and voltmeters

Principles and types of analog and digital ammeters and voltmeters Principles and types of analog and digital ammeters and voltmeters Electrical voltage and current are two important quantities in an electrical network. The voltage is the effort variable without which

More information

Unit 15: Electrical Circuits

Unit 15: Electrical Circuits INQUIRY PHYSICS A Modified Learning Cycle Curriculum by Granger Meador Unit 15: Electrical Circuits Student Papers 2010 by Granger Meador inquiryphysics.org 15 Electrical Circuits Nam e Lab A: BASIC CIRCUITRY

More information

Ordinary Level Physics SOLUTIONS: EFFECTS OF AN ELECTRIC CURRENT

Ordinary Level Physics SOLUTIONS: EFFECTS OF AN ELECTRIC CURRENT Ordinary Level Physics SOLUTIONS: EFFECTS OF AN ELECTRIC CURRENT Safety Features and kilowatt hours The unit of energy is called the kilowatt hour One kilowatt hour is the amount of energy used by a 1000

More information

15 Electrical Circuits Name Worksheet A: SERIES CIRCUIT PROBLEMS

15 Electrical Circuits Name Worksheet A: SERIES CIRCUIT PROBLEMS Worksheet A: SERIES CIRCUIT PROBLEMS be careful to use proper significant figures on all answers 1. What would be the required voltage of an energy source in a circuit with a current of 10.0 A and a resistance

More information

Electricity 2 Questions NAT 5

Electricity 2 Questions NAT 5 Electricity 2 Questions NAT 5 1) a) A 25W lamp is designed to be used with the mains voltage. Calculate the resistance of the lamp. b) Four of the lamps are connected in parallel. Calculate the total resistance

More information

Experiment 3. The Direct Current Motor Part II OBJECTIVE. To locate the neutral brush position. To learn the basic motor wiring connections.

Experiment 3. The Direct Current Motor Part II OBJECTIVE. To locate the neutral brush position. To learn the basic motor wiring connections. Experiment 3 The Direct Current Motor Part II OBJECTIVE To locate the neutral brush position. To learn the basic motor wiring connections. To observe the operating characteristics of series and shunt connected

More information

Application Notes. Calculating Mechanical Power Requirements. P rot = T x W

Application Notes. Calculating Mechanical Power Requirements. P rot = T x W Application Notes Motor Calculations Calculating Mechanical Power Requirements Torque - Speed Curves Numerical Calculation Sample Calculation Thermal Calculations Motor Data Sheet Analysis Search Site

More information