Calculate the displacement current density when the electric flux density is 20sin 0.5t.

Electronics and Communication Engineering (ECE) : Electromagnetic Field Theory - Quiz(MCQ)

10sin 0.5t

10cos 0.5t

20sin 2t

20cos 2t

Correct Answer : Option (B) : 10cos 0.5t

Explanation : The displacement current density is given by, Jd = dD/dt.
Jd = d(20sin 0.5t)/dt = 20cos 0.5t (0.5) = 10cos 0.5t.

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