Question

A parallel plate capacitor has a uniform electric field in the space between the plates. If the distance between the plates is and area of each plate is , the energy stored in the capacitor is :

A

B

C

D

Hard
NEET

Solution

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Correct option is B)

Hint: The capacitance is defined as the product of permittivity of free space and the area divided by the separation between the plates.

Step1: finding total energy

Total energy energy density volume,

 where

Correct answer:  (B)

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