Electromagnetic Field Theory - Engineering

Q1:

If ωε is the displacement current factor and s is conduction current density factor then which of the following statements is incorrect?

A For a lossless dielectric σ = 0

B For an imperfect dielectric σ = 0

C For a dielectric ωε >> σ

D For a semiconductor ωε = σ

ANS:B - For an imperfect dielectric σ = 0

No answer description is available.