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Question
Displacement current goes through the gap between the plates of a capacitor when the charge of the capacitor
(a) increases
(b) decreases
(c) does not change
(d) is zero
Solution
(a) increases
(b) decreases
Displacement current inside a capacitor,
`i_d = ∈_0 (dΦ_E)/dt` , Where
`Φ_E` is the electric flux inside the capacitor.
Up to the time the electric flux changes, there will be a displacement current. This is possible when the charge on a capacitor changes. Therefore, the displacement current goes through the gap between the plates of a capacitor when the charge of the capacitor or electric field increases or decreases inside the capacitor.
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