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A parallel plate capacitor is charged an...

A parallel plate capacitor is charged and the charging battery is then disconnected. If the plates of the capacitor are moved farther apart by means of insulating handles:

A

The charge on the capacitor increases.

B

The voltage across the plates decreases.

C

The capacitance increases.

D

The electrostatic energy stored in the capacitor increases.

Text Solution

Verified by Experts

The correct Answer is:
d
There is no loss of charge when the batter is connected.
Capacitance of a parallel plate condenser = C
`C=(epsilon_(0)A)/(d)becauseQ=CV` is constant
`(epsilon_(0)A)/(d)xxV=` constant `rArrepsilon_(0)AV`= constant `xx` d When d increases , V shall increase
energy of condenser `=(1)/(2)QV`
When V increases , energy stored will increase.
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