The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q a

Question

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

Accepted Answer

For an isolated capacitor, charge $Q$ is constant. The force between the plates is given by $F_{	ext{plate}} = \frac{Q^2}{2A\epsilon_0}$. This expression does not contain the distance between the plates, hence it is independent of the distance.

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