1.

A cube of a metal is given a positive charge `Q`. For the above system, which of the following statements is true ?A. Potential at the surface of cube is zeroB. Potential within the cube is zeroC. Electric field is normal to the surface of the cubeD. Electric field varies within the cube

Answer» Correct Answer - C
For any metallic surface, electric field lines are `bot^(r)` to the surface.


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