Question

The current equation in the circuit shown below is? (a) i=2(e^-2t)A (b) i=2(e^2t)A (c) i=2(-e^-2t)A (d) i=2(-e^2t)A This question was posed to me in my homework. This interesting question is from DC Response of an R-C Circuit topic in section Transients 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

Correct choice is (a) i=2(e^-2t)A To explain: At t = 0, switch S is closed. Since the capacitor does not allow sudden changes in voltage, the current in the circuit is i = V/R = 20/10 = 2A. At t = 0, i = 2A. The current equation is i=2(e^-2t)A.