Q.62 The parallel-plate capacitor shown in the figure has movable plates. The capacitor is charged so that the energy stored in it is E when the plate separation is d . The capacitor is then isolated electrically and the plates are moved such that the plate separation become 2d .
At this new plate separation, what is the energy stored in the capacitor, neglecting fringing effects?
(A) 2E
(B) 2E
(C) E
(D) E/2
Answer: (A)
Explanation:
