Question

When the Maxwell equation is expressed in frequency domain, then which substitution is possible?

(a) d/dt = w/j

(b) d/dt = j/w

(c) d/dt = jw

(d) Expression in frequency domain is not possible

The question was posed to me during a job interview.

The question is from Maxwell Law 1 in division Maxwell Equations of Electromagnetic Theory

Answer 1

Correct option is (c) d/dt = jw

The explanation: The conversion of time to frequency domain in Maxwell equation is given by the Fourier Transform. Differentiation in time gives jw in frequency domain. Thus d/dt = jw in frequency domain.