Charge is distributed uniformly on the surface of a large flat plate. The electric field 2 cm from the plate is 30 N/C. The electric field 4 cm from the plate is:

Question

Quizplus · Accepted Answer

The electric field due to an infinite plane with uniform surface charge density is constant and does not depend on the distance from the plate. Therefore, the electric field at 4 cm is the same as at 2 cm, which is 30 N/C.

Charge Is Distributed Uniformly on the Surface of a Large