Assertion: The force with which one plate of a parallel plate capacitor is attracted towards the other plate is equal to square of surface density per `epsilon` per unit area.
Reason: The electric field due to one charged plate of the capacitor at the location of the other is equal to surface density per `epsilon`.

Options

A. If both assertion and reason are true and reson is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If assertion and reason both are false.

Answer

D

Explanation

The electric field due to one charged plate at the location of the other is `E = sigma//2 epsilon_(0)` and the force per unit area is `F = sigma E = sigma^(2)//2 epsilon_(0)`.