By what factor does the energy stored in the electric field

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Reference no: EM13283855

A parallel-plate capacitor has fixed charges +Q and -Q. The separation of the plates is then doubled.

(a) By what factor does the energy stored in the electric field change?

(b) How much work must be done in doubling the plate separation from d to 2d? The area of each plate is A.

Reference no: EM13283855

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