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Questions  

The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is

a
Independent of the distance between the plates
b
Linearly proportional to the distance between the plates
c
Proportional to the square root of the distance between the plates
d
Inversely proportional to the distance between the plates

detailed solution

Correct option is A

For isolated capacitor, charge Q = constant.∴ Electrostatic force, Fplate =Q22Aε0F is independent of the distance between plates.

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