NEETPhysicsElectrostatics
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The electric potential at all points inside a charged hollow conducting sphere is zero. Reason (R): The electric field inside a charged hollow conducting sphere is zero everywhere. In the light of the above statements, choose the most appropriate answer from the options given below:
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A).
- BBoth (A) and (R) are true but (R) is not the correct explanation of (A).
- C(A) is true but (R) is false.
- D(A) is false but (R) is true.
Correct answer
D. (A) is false but (R) is true.
Step-by-step solution
For a charged hollow conducting sphere, the charge resides entirely on its outer surface. The electric field inside the conductor is zero everywhere, so the Reason (R) is true. The relationship between electric field E and electric potential V is given by E = - dV dr . Since E = 0 inside the sphere, dV dr = 0 , which means the electric potential V is constant throughout the interior volume and is equal to its value on the surface. Therefore, the potential is not zero (unless the surface potential is zero), making t