3V +1 a R₁ www R₂ ww R5 www www R4 ww R3 b
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter23: Resistive-inductive-capacitive Series Circuits
Section: Chapter Questions
Problem 9RQ: What is the power factor of the circuit in Question 6?
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Question
Now assume that you have added an additional resistor, R5, between terminals a and b as shown below. Assume that R1=1kΩ,R2=2kΩ,R3=3kΩ,R4= ? kΩ,R5=5kΩ. In the process of constructing this circuit, you notice that you forgot to write down the value of R4 !
However, you notice something very curious about your Wheatstone Bridge circuit: there is no current flowing through resistor R5.
Based on this observation, what must the value of resistor R4 be?
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