Question

The attenuation constant is 0.5 units. The skin depth will be

(a) 0.5

(b) 0.25

(c) 2

(d) 4

I have been asked this question by my college director while I was bunking the class.

This interesting question is from Skin Effect in portion Transmission Lines of Electromagnetic Theory

Answer 1

Correct option is (c) 2

The best explanation: The skin depth is the reciprocal of the attenuation constant. Thus δ = 1/α. On substituting for α = 0.5, we get δ = 1/0.5 = 2 units.