Question

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : A spherical equipotential surface is not possible for a point charge.

Reason (R) : A spherical equipotential surface is possible inside a spherical capacitor.

In the light of the above statements, choose the correct answer from the options given below

• A. If both Assertion and Reason are true and Reason is 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 both Assertion and Reason are false.

Answer 1

The Correct Option is D

Consider a symmetrical spherical surface around the point charge at a distance $a$.

Potential at each point of this spherical surface is $V=\frac{1}{4 \pi \varepsilon_{0}} \times \frac{q}{a}=$ constant This surface acts as an equipotential surface. Consider a isolated spherical capacitor of radius $b$.

Potential of each point on the surface $V=\frac{1}{4 \pi \varepsilon_{0}} \times \frac{Q}{b}=$ constant.