A parallel-plate capacitor with an air gap has capacitance Co. It is connected t

Question

A parallel-plate capacitor with an air gap has capacitance Co. It is connected to a battery with potential Vo that gives it charge Qo and stored energy U0. while the capacitor is still connected to the battery, a dielectric with constant K = 6 is inserted into the air gap, completely filling it. In terms of the initial values, find the new capacitance C, charge Q, potential V, and stored energy U. (For C, use the following as necessary: Co. For Q, use the following as necessary: Qo. For V, use the following as necessary: Vo. For U, use the following as necessary: Uo-) c=1600 0 U,

Explanation / Answer

Q=CV

C=6Co

V is potential ...it is constant as the same battery is connected to it

So Q=6Qo

V=Vo

U=1/2 C V2

So U=6Uo as V is constant.......

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