Question

The velocity of an electromagnetic wave with frequency 6MHz and a skin depth of 1.6 μm. (a) 3.75 (b) 0.26 (c) 9.6 (d) 7.8 The question was posed to me by my school teacher while I was bunking the class. Origin of the question is Lossless and Distortionless Line topic in division Transmission Lines 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

The correct option is (c) 9.6 To elaborate: The velocity of a wave is the product of the frequency and the skin depth. It is given v = f. δ. On substituting for f = 6 x 10^6 and δ = 1.6 x 10^-6, we get v = 6 x 10^6 x 1.6 x 10^-6 = 9.6 units.