Question

A non-conducting sphere has uniform charge density in it. The electric field at a point inside the sphere will be _______

(a) Zero

(b) Only due to the charge inside that point

(c) Only due to the charge outside that point

(d) Due to the entire charge of the sphere

This question was addressed to me in examination.

My question is based upon Gauss’s Law in chapter Charges and Fields of Physics – Class 12

Answer 1

Correct answer is (b) Only due to the charge inside that point

The best explanation: In the case of a non-conducting sphere, an electric charge is uniformly distributed throughout the sphere. Inside the sphere, the electric field at a point will be only due to the electric charge inside that point. There will be no effect of the remaining charge outside that point. In the case of the conducting sphere, the electric field at every point inside the sphere is zero.