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
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Transcribed Image Text: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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