Question

Find the time constant of a capacitor with capacitance of 2 microfarad having an internal resistance of 4 megaohm. (a) 2 (b) 0.5 (c) 8 (d) 0.25 The question was asked in final exam. Origin of the question is Maxwell Law in Time Varying Fields topic in section Maxwell Equations of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

Answer 1

Right option is (c) 8 Explanation: The time constant of capacitor is given by T = RC, where R = 4×10^6 and C = 2×10^-6. Thus T = 4×10^6 x2x10^-6 = 8 seconds.