Q.The capacitance of a parallel plate capacitor is $C$ when distance between plates is $d$ . If distance is reduced to $d/3$ while keeping charge constant, the energy stored becomes (JEE Main 2021)

3

times

9

times

1/3

times

1/9

times

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.The capacitance of a parallel plate capacitor is CCC when distance between plates is ddd. If distance is reduced to d/3d/3d/3 while keeping charge constant, the energy stored becomes (JEE Main 2021)