A charge Q is uniformly distributed over a large plastic plate. The electric field at a point P close to the centre of the plate is 10V/m. If the plastic plate is replaced by a copper plate of the same geometrical dimensions and carrying the same charge Q, the electric field at the point P will become(a) zero (b) 5V/m (c) 10V/m (d) 20V/m.

A charge Q is uniformly distributed over a large plastic plate. The el

1.	A charge Q is uniformly distributed over a large plastic plate. The electric field at a point P close to the centre of the plate is 10V/m. If the plastic plate is replaced by a copper plate of the same geometrical dimensions and carrying the same charge Q, the electric field at the point P will become(a) zero (b) 5V/m (c) 10V/m (d) 20V/m.
Answer» The correct answer is (c) 10V/m.