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Find the displacement current when the flux density is given by t^3 at 2 seconds.

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in Electromagnetic Theory by (188k points)
Find the displacement current when the flux density is given by t^3 at 2 seconds.

(a) 3

(b) 6

(c) 12

(d) 27

I got this question by my school teacher while I was bunking the class.

This key question is from Faraday Law, EMF and Lenz Law in division Magnetostics of Electromagnetic Theory

1 Answer

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Right choice is (c) 12

Easy explanation: The displacement current is given by Jd = dD/dt. Thus Jd = 3t^2. At time t = 2, we get Jd = 3(2)^2= 12A.

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