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

Options

A. Independent of the distance between the plates
B. Linearly proportional to the distance between the plates
C. Propotional to the square root of the distance between the plates
D. Inversely propotional to the distance between the plates

Answer

A

Explanation

For isolated capacitor, charge Q = constant.
`:.` Electrostatic force, `F_("plate") = (Q^(2))/(2A epsilon_(0))`
F is independent of the distance between plates.