A 300-N/C uniform electric field points perpendicularly toward the left face of a large neutral conducting sheet.The area charge density on the left and right faces, respectively, are:

Question

Quizplus · Accepted Answer

Since the conductor is neutral, there is no net charge on either side. Therefore, the charge density on each side must be equal and opposite. The electric field points towards the left face, so the charge on the left face must be negative in order to produce an opposing electric field. The charge on the right face must be positive. Therefore, the correct choice is A, where the charge densities are equal in magnitude but opposite in sign.

A 300-N/C Uniform Electric Field Points Perpendicularly Toward the Left