Question

The expression of current in R-L circuit is? (a) i=(V/R)(1+exp⁡((R/L)t)) (b) i=-(V/R)(1-exp⁡((R/L)t)) (c) i=-(V/R)(1+exp⁡((R/L)t)) (d) i=(V/R)(1-exp⁡((R/L)t)) I had been asked this question during an internship interview. The query is from DC Response of an R-L Circuit in portion 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 (d) i=(V/R)(1-exp⁡((R/L)t)) Easiest explanation: The expression of current in R-L circuit is i = (V/R)-(V/R)exp⁡((R/L)t). On solving we get i = (V/R)(1-exp⁡((R/L)t)).