Question

In the circuit given below, the switch S1 is initially closed and S2 is opened. The inductor L carries a current of 10A and the capacitor is charged to 10 V with polarities as shown. The current through L during t=0^+ is _____________ (a) 55 A (b) 5.5 A (c) 45 A (d) 4.5 A I had been asked this question during an online exam. I need to ask this question from Dot Convention in Magnetically Coupled Circuits in division Resonance & Magnetically Coupled Circuit 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 option is (a) 55 A Easy explanation: By KCL, we get, \frac{V_L}{10} – 10 + \frac{V_L-10}{10} = 0 Hence, 2 VL = 110 ∴ VL = 55 V.