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At dc field, the displacement current density will be

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in Electromagnetic Theory by (188k points)
At dc field, the displacement current density will be

(a) 0

(b) 1

(c) Jc

(d) ∞

I have been asked this question in an international level competition.

The above asked question is from Maxwell Law 2 topic in section Maxwell Equations of Electromagnetic Theory

1 Answer

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Right option is (a) 0

To elaborate: The DC field refers to zero frequency. The conduction current is independent of the frequency, whereas the displacement current density is dependent on the frequency, i.e, Jd = jwεE. Thus at DC field, the displacement current density will be zero.

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