R1 = 12. R2=12. R3= 1800 . UB R1 R2 R3 Rx
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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Question
Resistor Rx in the Wheatstone bridge in the picture is a wire strain sensor. The battery voltage is UB = 68 V. The value of the three resistors is as follows: R1 = 1 . R 2 = 1 . R3= 1800 .
a) Determine the sensor resistance if the instrument shows no potential difference
b) The current from the battery branches to I1 through resistor R1 and I2 through resistor R2. Determine the ratio (ratio) between the current I1 and the current I2
Transcribed Image Text:R1 = 12.
R2=12.
R3= 1800 .
UB
R1
R2
R3
Rx
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