1.

In the circuit given below, the current in the 30 Ω resistor is _________(a) 1 A(b) 2 A(c) 3 A(d) 4 AI have been asked this question in exam.This question is from Advanced Problems on Reciprocity Theorem in chapter Useful Theorems in Circuit Analysis of Network Theory

Answer»

The CORRECT choice is (b) 2 A

To explain: Equivalent Resistance, REQ = 20 + [60 || 30]

= 20 + \(\frac{60 × 30}{60+30}\)

= 20 + 20 = 40 Ω

Total CURRENT from the source, I = \(\frac{120}{40}\) = 3A

Now, by USING current division rule, I3Ω = \(\frac{3 × 60}{30+60}\) = 2 A.



Discussion

No Comment Found

Related InterviewSolutions