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A parallel plate capacitor stores a char...

A parallel plate capacitor stores a charge Q at a voltage V . Suppose the area of the parallel plate capacitor and the distance between the plates are each doubled then which is the quantity that will change ?

A

Capacitance

B

Charge

C

Voltage

D

Energy density

Text Solution

Verified by Experts

The correct Answer is:
D
Energy density `V_E = U/"volume"`
If `A.=2A,d.=2d`
then `V.=2A xx 2d = 4 Ad = 4V`
then volume would be increased. So energy density will change.
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