A parallel plate capacitor with plate separation d isconnected to a battery. The

Question

A parallel plate capacitor with plate separation d isconnected to a battery. The capacitor is fully charged to QCoulombs and a voltage of V Volts. (C is thecapacitance and U is the stored energy.) Give all correctanswers concerning a parallel-plate capacitor charged by a battery(e.g. B, AC, CDF) if none of them are correct, enter the wordnone.

A) With the capacitor connected to the battery, inserting adielectric with kappa > 1 will decrease U.
B) With the capacitor connected to the battery, decreasingd increases U.
C) With the capacitor connected to the battery, increasingd increases C.
D) With the capacitor connected to the battery, inserting adielectric with kappa > 1 will decrease Q.
E) With the capacitor connected to the battery, inserting adielectric with kappa > 1 will increase C.
F) With the capacitor connected to the battery, increasingd decreases Q.

Explanation / Answer

A) With the capacitor connected to the battery, inserting adielectric with kappa > 1 will decrease U. [False ]
B) With the capacitor connected to the battery, decreasingd increases U. [ True]
C) With the capacitor connected to the battery, increasingd increases C. [ False]
D) With the capacitor connected to the battery, inserting adielectric with kappa > 1 will decrease Q.[false]
E) With the capacitor connected to the battery, inserting adielectric with kappa > 1 will increaseC.[True]
F) With the capacitor connected to the battery, increasingd decreases Q.[[ True] Answer is BEF

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