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Find the resistor value R1(Ω) in the figure shown below.(a) 10(b) 11(c) 12(d) 13The question was posed to me during an interview.This is a very interesting question from Nodal Analysis topic in chapter Methods of Analyzing Circuits of Network Theory

Answer»

The correct OPTION is (C) 12

To explain: 10=(V1-V2)/14+(V1-V3)/R1. From the CIRCUIT, V1=100V, V2=15×2=30V, V3=40V. On SOLVING, R1=12Ω.



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