Q 1(b) [8 Marks] A voltmeter is used to determine the voltage output Vo from a Wheatstone bridge as shown in Figure Q1b. R1 = R3 = 1202, R2 = R4 = 12202. If the internal resistance of the voltmeter is 2000, what is the error associated with the measurement? (Hint: when reducing to an equivalent circuit you may regard the R1/R2 junction and the R3/R4 junction as the same point.) R1 R2 R3 Vo R4 Figure Q1b Vex

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter7: Parallel Circuits
Section: Chapter Questions
Problem 3PP: Using the rules for parallel circuits and Ohmslaw, solve for the missing values....
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Q 1(b)
[8 Marks]
A voltmeter is used to determine the voltage output Vo from a Wheatstone bridge as shown
in Figure Q1b. R1 = R3 = 1202, R2 = R4 = 12202. If the internal resistance of the
voltmeter is 2000, what is the error associated with the measurement? (Hint: when
reducing to an equivalent circuit you may regard the R1/R2 junction and the R3/R4 junction
as the same point.)
R1
R2
R3
Vo
R4
Figure Q1b
Vex
Transcribed Image Text:Q 1(b) [8 Marks] A voltmeter is used to determine the voltage output Vo from a Wheatstone bridge as shown in Figure Q1b. R1 = R3 = 1202, R2 = R4 = 12202. If the internal resistance of the voltmeter is 2000, what is the error associated with the measurement? (Hint: when reducing to an equivalent circuit you may regard the R1/R2 junction and the R3/R4 junction as the same point.) R1 R2 R3 Vo R4 Figure Q1b Vex
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