Physics · Electrostatic Potential

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The electric field at any point on the surface of a charged conductor is \( \mathbf{E} = \frac{\sigma}{2\varepsilon_0}\mathbf{\hat{n}} \). Reason (R): Charges inside a conductor move to the outer surface to minimize their mutual electrostatic potential energy. In the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. is true but (R) is false.
4. is false but (R) is true.