Q1 1. Interchange the battery and galvanometer 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?

Q1 1. Interchange the battery and galvanometer 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?

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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Note the question on the electrical foundations

Q1
1. Interchange the battery and galvanometer 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?

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