Question

In conductors, which condition will be true?

(a) σ/ωε > 1

(b) σωε > 1

(c) σ/ωε < 1

(d) σωε < 1

The question was asked in an online interview.

Asked question is from Dielectric vs Conductor Wave Propagation topic in division EM Wave Propagation of Electromagnetic Theory

Answer 1

Correct answer is (a) σ/ωε > 1

The explanation is: For conductors, the conductivity will be maximum. Thus the loss tangent is greater than unity. This is given by σ/ωε >1.