Question

Which one of the following statements is true?

1. In equilibrium all of any excess charge stored on a conductor is on the outer surface.

2. In equilibrium the electric field inside a conductor is zero.

3. In a spherical insulator with radius R on which charge q is uniformly distributed, the electric field at a distance of R/4 from the center of the sphere is ¼ of the field at the surface of the sphere

Answer 1

Ans - All 3 statements are correct:-

1. In equilibrium all of any excess charge stored on a conductor is on the outer surface.

2. In equilibrium the electric field inside a conductor is zero.

3. In a spherical insulator with radius R on which charge q is uniformly distributed, the electric field at a distance of R/4 from the center of the sphere is ¼ of the field at the surface of the sphere

Explanation for 3rd statement:-

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