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Find the value of the resistor R2 (Ω) in the circuit shown below.(a) 5(b) 6(c) 7(d) 8I have been asked this question by my college director while I was bunking the class.The query is from Nodal Analysis in division Methods of Analyzing Circuits of Network Theory

Answer»

The correct CHOICE is (b) 6

The best EXPLANATION: As V1=100V, V2=15×2=30V, V3=40V. (V1-V2)/14+(V1-V3)/R2=15. On solving we GET R2 = 6Ω.



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