A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is
(3) 12 0E2Ad
Energy density in the electric field, u = 12 0E2
Volume of the space between the plates = Ad
Energy stored, U = 12 0E2 Ad = 12 0E2Ad
Answer: (3)
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