Work and electric potential in a field

[rrr3221]

Homework Statement

if the electric field does negative work on a negative charge as the charge undergoes displacement from Position A to Position B within an electric field, then the electric potential energy

A) is negative
B) is positive
C) increases
D) decreases
E) cannot be determined

Homework Equations

u=qed, v=qu, v=ed

The Attempt at a Solution

since both q and u are negative V must be positive

 

[rl.bhat]

Within an electric field the electric potential is always positive. As you change the position it either increases or decreases. If you move in the direction of the field it decreases.