MCQ Practice Question Network TheoryTransient Analysis For a source-free RC circuit with R=20 kOhm and C=5 microfarad, the time constant is? A10 ms B50 ms C100 ms D500 ms Show AnswerHide AnswerReport an error Correct Answer: C. 100 ms Explanation: tau=RC=20000×5e-6=0.1 s=100 ms.Reference: Standard network theory: RC time constant numerical