Question

a solid conductor has a cavity in its interior .would the presence of point charge inside the cavity effect the electric field outside the conductor?​

Answer 1

Explanation:

A point charge affects the electric field outside the conductor. The point charge induces a charge of equal magnitude and opposite sign on the inner surface of the conductor. The conductor is overall neutral so there is a charge equal to the point charge spread over the exterior surface of the conductor. This exterior charge produces an electric field outside the conductor. Charge outside the conductor doesnt produce any electric field inside the cavity. The electric field of the external charge is shielded by the conductor.

Answer 2

Answer:

The charge inside the cavity affect the electric field outside while a point charge outside the conductor does not affect the electric field inside

Explanation:

The presence of point charge  affects the electric field outside the conductor. It induces a charge of same magnitude and opposite sign on the inner side of the conductor. The conductor is overall neutral so the charge is equal to the point charge which is spread over the outside surface of the conductor which generates an electric field outside the conductor. But the charge produced outside doesn’t produce any electric field inside the cavity. The electric field of the external charge is shielded by the conductor which acts as a barrier.

Thus a point charge outside the conductor does not affect the electric field inside of the conductor.

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