1. Manuals
  2. Brands
  3. Pasco Scientific Manuals
  4. Industrial Equipment
  5. EM-8622
  6. Instruction manual and experiment manual

Pasco Scientific EM-8622 Instruction Manual And Experiment Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Includes
Instruction Manual and
012-04367E
Teacher's Notes
and
4/94
Typical
Experiment Guide for
Experiment
Results
the PASCO scientific
Model EM-8622
BASIC ELECTRICITY
© 1990 PASCO scientific
$10.00
better
ways to
10101 Foothills Blvd. • P.O. Box 619011 • Roseville, CA 95678-9011 USA
teach physics
Phone (916) 786-3800 • FAX (916) 786-8905 • TWX 910-383-2040

Advertisement

Table of Contents
loading

Related Manuals for Pasco Scientific EM-8622

Summary of Contents for Pasco Scientific EM-8622

  • Page 1 Experiment Guide for Experiment Results the PASCO scientific Model EM-8622 BASIC ELECTRICITY © 1990 PASCO scientific $10.00 better ways to 10101 Foothills Blvd. • P.O. Box 619011 • Roseville, CA 95678-9011 USA teach physics Phone (916) 786-3800 • FAX (916) 786-8905 • TWX 910-383-2040...

  • Page 3: Table Of Contents

    012-04367E Basic Electricity Table of Contents Section ......................Page Copyright, Warranty, and Equipment Return ..........ii Introduction ..................... 1 Equipment ......................1 Getting Started, The Experiments ..............2 Comments on Meters ..................3 Notes on the Circuits Experiment Board ............4 Experiments Experiment 1: Circuits Experiment Board ........

  • Page 4: Copyright, Warranty And Equipment Return

    THORIZATION. Limited Warranty When returning equipment for repair, the units must be PASCO scientific warrants this product to be free from packed properly. Carriers will not accept responsibility defects in materials and workmanship for a period of one for damage caused by improper packing. To be certain year from the date of shipment to the customer.

  • Page 5: Introduction

    Experiment Board appears in used for experiments beginning with a simple complete Figure 1.2 of Experiment 1. Equipment The PASCO Model EM-8622 Circuits Experiment Kit includes the following materials: 012-04367A Instruction Manual and 3 / 9 1...

  • Page 6: Getting Started, The Experiments

    Basic Electricity 012-04367E Getting Started Store the remainder of the components in the zip- Open the zip-lock bag containing the resistors and lock bag until needed in future experiments. other components. Distribute the following resistors and wires to each of the boards, storing them in the Students will need to use the same resistors, same bat- plastic holder at the top of the board: teries, etc.

  • Page 7: Comments On Meters

    012-04367E Basic Electricity Comments on Meters VOM: VTVM: The Volt-Ohm-Meter or VOM is a multiple scale, multiple The Vacuum Tube Voltmeter or VTVM is a multiple function meter (such as the PASCO SB-9623 Analog scale, multiple function meter, typically measuring Multimeter), typically measuring voltage and resistance, voltage and resistance.

  • Page 8: Notes On The Circuits Experiment Board

    Basic Electricity 012-04367E Notes on the Circuits Experiment Board The springs are securely soldered to the board and serve When connecting a circuit to a D-cell, note the polarity as a convenient method for connecting wires, resistors (+ or -) which is printed on the board. In some cases the and other components.

  • Page 9: Experiment 1: Circuits Experiment Board

    012-04367E Basic Electricity Experiment 1: Circuits Experiment Board EQUIPMENT NEEDED: -Circuits Experiment -Board -D-cell Battery -Wire Leads -Graph -Paper Purpose The purpose of this lab is to become familiar with the Circuits Experiment Board, to learn how to construct a complete electrical circuit, and to learn how to represent electrical circuits with circuit diagrams.
  • Page 10 Basic Electricity 012-04367E Procedure Use two pieces of wire to make connections between the springs on one of the light bulbs to the springs on the D-cell in such a way that the light will glow. Discuss with your lab partner before you begin actually wiring your circuit which connections you intend to make, and why you think you will be successful in activating the light.

  • Page 11: Experiment 2: Lights In Circuits

    012-04367E Basic Electricity Experiment 2: Lights in Circuits EQUIPMENT NEEDED: -Circuits Experiment Board -Two D-cell Batteries -Wire Leads -Graph Paper. Purpose The purpose of this lab is to determine how light bulbs behave in different circuit arrangements. Different ways of connecting two batteries will also be investigated. Procedure PART A NOTE: Due to variations from bulb to bulb, the brightness of one bulb may be substantially...
  • Page 12 Basic Electricity 012-04367E PART B Connect a single D-cell to a single light as in step 1, using a spring clip “switch” to allow you to easily turn the current on and off. Note the brightness of the light. Now connect the second D-cell into the circuit as shown in Figure 2.1a. What is the effect on the brightness of the light? Figure 2.1b Figure 2.1a...

  • Page 13: Experiment 3: Ohm's Law

    012-04367E Basic Electricity Experiment 3: Ohm’s Law EQUIPMENT NEEDED: -Circuits Experiment Board -D-cell Battery -Multimeter -Wire Leads -Graph Paper. Purpose The purpose of this lab will be to investigate the three variables involved in a mathematical relationship known as Ohm’s Law. Procedure Choose one of the resistors that you have been given.
  • Page 14 Basic Electricity 012-04367E Data Processing Construct a graph of Current (vertical axis) vs Resistance. For each of your sets of data, calculate the ratio of Voltage/Resistance. Compare the values you calculate with the measured values of the current. Resistance, Ω Current, amp Voltage, volt Voltage/Resistance...

  • Page 15: Experiment 4: Resistances In Circuits

    012-04367E Basic Electricity Experiment 4: Resistances in Circuits EQUIPMENT NEEDED: -Circuits Experiment Boar - Multimeter -Resistors. Purpose The purpose of this lab is to begin experimenting with the variables that contribute to the opera- tion of an electrical circuit. This is the first of a three connected labs. Procedure Choose the three resistors having the same value.
  • Page 16 Basic Electricity 012-04367E Series Figure 4.1 Construct a PARALLEL CIRCUIT, first using combinations of two of the resistors, and then using all three. Measure and record your values for these circuits. Parallel NOTE: Include also R Connect the COMBINATION CIRCUIT below and measure the various combinations of resistance.
  • Page 17 012-04367E Basic Electricity Colors Coded Measured Tolerance 4th Resistance Resistance Error Table 4.2 Series Figure 4.4 Parallel Figure 4.5 NOTE: Include also R...
  • Page 18 Basic Electricity 012-04367E Combination Figure 4.6 Discussion How does the % error compare to the coded tolerance for your resistors? What is the apparent rule for combining equal resistances in series circuits? In parallel circuits? Cite evidence from your data to support your conclusions. What is the apparent rule for combining unequal resistances in series circuits? In parallel circuits? Cite evidence from your data to support your conclusions.

  • Page 19: Experiment 5: Voltages In Circuits

    012-04367E Basic Electricity Experiment 5: Voltages in Circuits EQUIPMENT NEEDED: -Circuits Experiment Board -Multimeter -D-cell Battery -Resistors -Wire Leads Purpose The purpose of this lab will be to continue experimenting with the variables that contribute to the operation of an electrical circuit. You should have completed Experiment 4 before working on this lab.
  • Page 20 Basic Electricity 012-04367E Now connect the parallel circuit below, using all three resistors. Measure the voltage across each of the resistors and the combination, taking care with the polarity as before. NOTE: Keep all three resistors connected throughout the time you are making your measurements.
  • Page 21 012-04367E Basic Electricity Series Figure 5.4 Parallel Figure 5.5...
  • Page 22 Basic Electricity 012-04367E Combination Figure 5.6 Discussion On the basis of the data you recorded on the table with Figure 5.1, what is the pattern for how voltage gets distributed in a series circuit with equal resistances? According to the data you recorded with Figure 5.4, what is the pattern for how voltage gets distributed in a series circuit with unequal resistances? Is there any relationship between the size of the resistance and the size of the resulting voltage?

  • Page 23: Experiment 6: Currents In Circuits

    012-04367E Basic Electricity Experiment 6: Currents in Circuits EQUIPMENT NEEDED: -Circuits Experiment Board -Digital Multimeter -Resistors -D-cell Battery -Wire Leads. Purpose The purpose of this lab will be to continue experimenting with the variables that contribute to the operation of electrical circuits. Procedure Connect the same three resistors that you used in Experiments 3 and 4 into the series circuit shown below, using the springs to hold the leads of the resistors together without bending them.
  • Page 24 Basic Electricity 012-04367E Figure 6.3 Connect the parallel circuit below, using all three resistors. Review the instructions for connecting the DMM as an ammeter in step 2. Connect it first between the positive terminal of the battery and the parallel circuit junction to measure I .

  • Page 25: Experiment 7: Kirchhoff's Rules

    012-04367E Basic Electricity Experiment 7: Kirchhoff’s Rules EQUIPMENT NEEDED: -Circuits Experiment Board -Two D-cell Batteries -Wire Leads -Digital Multimeter (DMM) -Resistors. Purpose The purpose of this lab will be to experimentally demonstrate Kirchhoff’s Rules for electrical circuits. Procedure Connect the circuit shown in Figure 7.1a using any of the resistors you have except the 10 Ω one.
  • Page 26 Basic Electricity 012-04367E Resistance, Ω Voltage, volts Current, mA Table 7.1 Analysis Determine the net current flow into or out of each of the four “nodes” in the circuit. Determine the net voltage drop around at least three (3) of the six or so closed loops. Re- member, if the potential goes up, treat the voltage drop as positive (+), while if the potential goes down, treat it as negative (-).

  • Page 27: Experiment 8: Capacitors In Circuits

    012-04367E Basic Electricity Experiment 8: Capacitors in Circuits EQUIPMENT NEEDED: – Vacuum Tube Voltmeter (VTVM) or Elec- – Circuits Experiment Board trometer (ES-9054B) or Digital Multimeter – Capacitors, Resistors (DMM) that has an input impedance of 10 MΩ – Wire Leads or greater.
  • Page 28 Basic Electricity 012-04367E Trial Resistance Capacitance Table 8.1 Replace the 100-µF capacitor with a 330-µF capacitor. Repeat step 7, recording the charging and discharging times in Table 8.1. If a third value is available, include it in the data table, too. Return to the original 100-µF capacitor, but put a 220-K Ω...

  • Page 29: Experiment 9: Diodes

    012-04367E Basic Electricity Experiment 9: Diodes EQUIPMENT NEEDED: -Circuits Experiment Board -Digital Multimeter (DMM) -Wire Leads -Two D-cell Batteries -1000-Ω Resistor -1N4007 Diode -330-Ω Resistor. Purpose The purpose of this lab will be to experimentally determine some of the operating characteristics of semiconductor diodes.
  • Page 30 Basic Electricity 012-04367E Discussion Discuss the shape of your graph and what it means for the operation of a semiconductor diode. Did the diode operate the same in steps 3 and 4 as it did in step 5? In steps 3 and 4 the diode was “Forward Biased”, while it was “Reverse Biased”...

  • Page 31: Experiment 10: Transistors

    012-04367E Basic Electricity Experiment 10: Transistors EQUIPMENT NEEDED: -Circuits Experiment Board -Two D-cell Batteries -Wire Leads -Digital Multimeter (DMM) -1000-Ω Resistor -2N3904 Transistor (NPN) -100-Ω Resistor. Purpose The purpose of this lab will be to experimentally determine some of the operating characteristics of a transistor.
  • Page 32 Basic Electricity 012-04367E Analysis For each of your sets of readings, calculate: and I Record all of your current readings in mA. Plot a graph of I (vertical axis) vs I . If you find an area or areas where you need more points to fill out any curves or sudden changes, simply return to step 2 and make the appro- priate measurements.

  • Page 33: Appendix: Tips And Troubleshooting

    012-04367E Basic Electricity Appendix: Tips and Troubleshooting Correct Circuit, Doesn’t Work The labs asking for relative brightness ask students to judge relative brightness only, not an absolute brightness. • Check to see if the circuit is indeed connected cor- This part of the experiment would be aided by having the rectly and completely.
  • Page 34 Basic Electricity 012-04367E Wires Pulling the wire away from the stripper (Figure 3c) causes the cut end of the insulation to slip off of the wire, leaving The Circuits Experiment Board can be used with a large 3/8" of exposed wire. variety of wire types and sizes.

  • Page 35: Replacement Parts List

    012-04367E Basic Electricity Replacement Parts List Item PASCO Part # P.C.B. ASSY, BASIC ELECT 004-04340 MANUAL EM-8622 012-04367 RES, 10 OHM, 1W, 5% 111-100 RES, 100 OHM, 1/2W, 5% 112-101 RES, 1K, 1/2W, 5% 112-102 RES, 100K, 1/2W, 5% 112-104...
  • Page 36 Basic Electricity 012-04367E Notes...

  • Page 37: Teacher's Guide

    012-04367E Basic Electricity Teacher's Guide Exp 1 - Circuits Experiment Board With this method, the lights will each be approximately the same brightness as in part 1. Serial: Reversing things at either end had no effect. There are two different ways of putting two lamps into the circuit: parallel and serial.
  • Page 38 Basic Electricity 012-04367E Exp 3- Ohm's Law Procedure 0.16 )Warn the students to be particularly careful when 0.14 setting up the multimeter to measure current. Attach- 0.12 ing an ammeter the wrong way can damage the meter. Data Processing 0.08 Resistance Current Voltage...
  • Page 39 012-04367E Basic Electricity Colors coded measured % error tolerance A brown-black-brown-gold 98.9 -1.10% ±0.05% B orange-orange-brown-gold 0.00% ±0.05% C green-blue-brown-gold 0.18% ±0.05% Discussion In series, the resistances are added. R = R + ...In parallel, the reciprocals of the The actual value matches the coded value much more resistances are added.
  • Page 40 Basic Electricity 012-04367E Exp 6- Currents in Circuits Discussion NOTE: The resistors used were: In any resistance circuit—series, parallel, or both—the 100Ω voltage, current, and resistance are related by Ohm’s 330Ω Law: 560Ω V = IR These are the same resistors as were used in the This pattern, and conclusion, should be apparent in previous lab, and some of the data here originates in student data.
  • Page 41 012-04367E Basic Electricity Analysis Second circuit: First circuit: node (2,3,4): -0.1 mA node (1,3): 0.1 mA node (b1,3,5): 0.1 mA node (1,2,5): 0.0 mA loop (b1,1,2,3) 0.001 V node (3,4,5): -0.1 mA loop (b2,5,3,4) 0.001 V node (2,4): 0.0 mA loop (b1,1,2,4,b2,5) 0.002 V loop (1,5,3): 0.001 V...
  • Page 42 Basic Electricity 012-04367E Exp 9- Diodes Analysis The diode acts as a one-way valve for electricity. Current can flow in one direction, but not in the other. 0.007 Extensions 0.006 4007 A zener diode would be similar to the 4007, except 0.005 that there would be a breakdown point on the reverse biasing, beyond which the current would flow.

  • Page 43: Technical Support

    012-04367E Basic Electricity Technical Support Feed-Back Contacting Technical Support If you have any comments about this product or this Before you call the PASCO Technical Support staff it manual please let us know. If you have any suggestions would be helpful to prepare the following information: on alternate experiments or find a problem in the manual •...

Table of Contents