Question

A positive point charge Q is brought near an isolated metal cube.

विकल्प

•  The cube becomes negatively charged.

• The cube becomes positively charged.

•  The interior becomes positively charged and the surface becomes negatively charged.

• The interior remains charge free and the surface gets non-uniform charge distribution.

Answer 1

The interior remains charge free and the surface gets non-uniform charge distribution.
Since the cube is metallic, the charge gets distributed on the surface and the interior remains charge-free. However, when a positive point charge Q is brought near the metallic cube, a negative charge gets induced on the face near the positive charge Q and an equal positive charge gets induced on the face, which is away from the charge Q. Thus, the metallic surface gets non-uniform charge distribution.