A capacitor consisting of two separated parallel horizontal plates has a uniform electric field directed upward. If a negative charge is placed exactly midway between the two plates, it will
A) be accelerated upward.
B) be accelerated downward.
C) remain at rest.
D) be accelerated to the right.
E) be accelerated to the left.

Question

Quizplus · Accepted Answer

The electric field lines run from the positive to the negative plate, so a negative charge will be accelerated in the direction opposite to the field lines, which is downward.

A Capacitor Consisting of Two Separated Parallel Horizontal Plates Has