Question

For R= 20 ohm and G= 0.8 mho, the attenuation constant will be (a) 16 (b) 4 (c) 2 (d) 32 The question was posed to me by my school teacher while I was bunking the class. The origin of the question is Lossless and Distortionless Line topic in chapter 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

Correct choice is (b) 4 The best I can explain: The attenuation constant is given by α = √(RG), where R and G is the resistance and conductance respectively. On substituting for R = 20 and G = 0.8, we get α = √(20 x 0.8) = 4 units.