Question

In the circuit given below, the current in the 30 Ω resistor is _________ (a) 1 A (b) 2 A (c) 3 A (d) 4 A I 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 Select the correct answer from above options network theory questions and answers, network theory questions pdf, network theory question bank, network theory gate questions and answers pdf, mcq on network theory pdf, gate network theory questions and solutions, network theory mcq Test , ies network theory questions, Network theory Questions for GATE EC Exam, Network Theory MCQ (Multiple Choice Questions)

Answer 1

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.