Question

The capacitance per unit length and the characteristic impedance of a lossless transmission line are C and Z respectively. The velocity of a travelling wave on the transmission line is (a) ZC (b) 1/ZC (c) Z/C (d) C/Z The question was asked during an online interview. This key question is from Advanced and Tricky Questions in portion Advanced and Tricky Questions 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 choice is (b) 1/ZC Easy explanation: The characteristic impedance of the Z = √(L/C) and the velocity of propagation is V = 1/√(LC). Thus we get V = 1/ZC.