A charge q is uniformly distributed over a large plastic plate. The electric
Channel: Doubtnut
Date: 19/04/2020

A charge q is uniformly distributed over a large plastic plate. The electric field at a point P close to the centre and just above the surface of the plate is 50 V/m. If the plastic plate is replaced by a copper plate of the same geometrical dimensions and carrying the same uniform charge q, the electric field at the point P will become :