A positively charged particle is released from rest in an uniform electric field. The electric potential energy of the charge

Options

A. remains a constant because the electric field is uniform.
B. increases because the charge moves along the electric field.
C. decreases because the charge moves along the electric field.
D. decreases because the charge moves opposite to the electric field.

Answer

C

Explanation

Positive electric charge always flows in direction of decreasing potential (i.e., from higher potential to lower potential) and hence along the direction of decreasing potential energy.