The capacitor is now reconnected to the battery, and the plate separation is restored to d. A dielectric plate is slowly moved into the capacitor until the entire space between the plates is filled. Find the energy U2 of the dielectric-filled capacitor. The capacitor remains connected to the battery. The dielectric constant is .

Express your answer in terms of A, d, V, K, and e0.

Express your answer in terms of A, d, V, K, and e0.

## This question was asked on Mar 16, 2010.

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