A parallel plate capacitor with plate area A and plate separation d is charged by constant current I. A plane surface of area A / 2 , parallel to the plates is drawn simultaneously between the plates. The displacement current through this a

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A parallel plate capacitor with plate area A and plate separation d is charged by constant current I. A plane surface of area A / 2 , parallel to the plates is drawn simultaneously between the plates. The displacement current through this area is

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Correct answer: B. I 2

The conduction current I charging a parallel plate capacitor equals the total displacement current I_d between the plates, so I_d = I . The uniform displacement current density is J_d = I/A . For a parallel surface with area A' = A/2 , the displacement current is I_ d' = J_d A' = (I/A) (A/2) = I/2 . Final answer: B

A parallel plate capacitor with plate area A and plate separation d is charged by constant current I. A plane surface of area A / 2 , parallel to the plates is drawn simultaneously between the plates. The displacement current through this area is

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