Question

. A positive point charge (+q) is kept in the vicinity of an uncharged conducting plate. Derive the expression for the electric field at the surface of a charged conductor.

Answer 1

Answer:

The lines of force start from +Q and terminate at metal place inducing a negative charge on it. The lines of force will be perpendicular to the metal surface.

Net electric field in region II=2ϵ01(σ1−σ2)

Direction of electric field is from sheet A to sheet B.III=2ϵ01(σ1+σ2)

(ii) The net electric field in the region

The direction is away from the two sheets i.e., towards the right side.