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1. Interchange the battery and gaivanometer and observe the effect. Explain your prediction and explain/justify your observation. 2. Obtain the resistance of an unknown resistor with the Wheatstone bridge and an Ohmmeter, which of these measurements is likely to be most accurate? Why? 3. If the voltmeter-ammeter method of determining resistance always has error due to current flowing through the meter or internal resistance in the meter, why is the Wheatstone bridge method better-it has a meter, too? 4. Name two advantages of a Wheatstone bridge over an ordinary ohmmeter. 5. What current should be flowing through the Galvanometer when the bridge is balanced?

1. Interchange the battery and gaivanometer and observe the effect. Explain your prediction and explain/justify your observation. 2. Obtain the resistance of an unknown resistor with the Wheatstone bridge and an Ohmmeter, which of these measurements is likely to be most accurate? Why? 3. If the voltmeter-ammeter method of determining resistance always has error due to current flowing through the meter or internal resistance in the meter, why is the Wheatstone bridge method better-it has a meter, too? 4. Name two advantages of a Wheatstone bridge over an ordinary ohmmeter. 5. What current should be flowing through the Galvanometer when the bridge is balanced?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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1. Interchange the battery and gaivanometer and observe the effect. Explain your prediction and explain/justify your observation. 2. Obtain the resistance of an unknown resistor with the Wheatstone bridge and an Ohmmeter, which of these measurements is likely to be most accurate? Why? 3. If the voltmeter-ammeter method of determining resistance always has error due to current flowing through the meter or intermal resistance in the meter, why is the Wheatstone bridge method better-it has a meter, too? 4. Name two advantages of a Wheatstone bridge over an ordinary ohmmeter. 5. What current should be flowing through the Galvanometer when the bridge is balanced?
Transcribed Image Text:1. Interchange the battery and gaivanometer and observe the effect. Explain your prediction and explain/justify your observation. 2. Obtain the resistance of an unknown resistor with the Wheatstone bridge and an Ohmmeter, which of these measurements is likely to be most accurate? Why? 3. If the voltmeter-ammeter method of determining resistance always has error due to current flowing through the meter or intermal resistance in the meter, why is the Wheatstone bridge method better-it has a meter, too? 4. Name two advantages of a Wheatstone bridge over an ordinary ohmmeter. 5. What current should be flowing through the Galvanometer when the bridge is balanced?
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