Two very large parallel sheets a distance d apart have their centers directly opposite each other.The sheets carry equal but opposite uniform surface charge densities.A point charge that is placed near the middle of the sheets a distance d/2 from each of them feels an electrical force F due to the sheets.If this charge is now moved closer to one of the sheets so that it is a distance d/4 from that sheet,what force will feel?
A) 4F
B) 2F
C) F
D) F/2
E) F/4

Question

Quizplus · Accepted Answer

The electric field between two parallel plates with equal but opposite charge is uniform. This means the force experienced by a point charge in this field does not depend on its position between the plates. Therefore, even when the charge is moved closer to one of the sheets, the force it feels remains F.

Two Very Large Parallel Sheets a Distance D Apart Have