A solid conductor has a hole inside. The net charge on the conduction (outer sur

Question

A solid conductor has a hole inside. The net charge on the conduction (outer surface + inner surface) is 3 nC. There is a charge of -2 nC on the inner surface of the conductor (i.e., the surface of the hole) due to a charge in the center of the hole. What is the charge in the hole and the charge on the outer surface of the conductor? -2 nC inside the hole and 1 nC on the outer surface. 2 nC inside the hole and 5 nC on the outer surface. 2 nC inside the hole and 1 nC on the outer surface. -3 nC inside the hole and zero on the outer surface. +3 nC inside the hole and zero on the outer surface. -2 nC inside the hole and 5 nC on the outer surface.

Explanation / Answer

2n inside hole and 1nC on the outer surface.

2nC will be induced by -2nC to the inner surface of the conductor(i.e. to the hole).
This left with 1nC of charge which will be on the outer surface if the conductor.

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