# Homework Help: Work done by electric field

Tags:
1. Jan 18, 2017

### RoboNerd

1. The problem statement, all variables and given/known data

Hi everyone, I am having trouble solving this question. I know that the right answer is d.

2. Relevant equations
No equations here, only conceptual stuff.

3. The attempt at a solution

Say I have the following points: A and B

A. B.

The negative charge is moving to the right, and if the electric field does positive work on it, then the electric force is going to the right, which means that the electric field is pointed leftwards from point B to point A.

This means the negative charge is moving from low to high potentials.

I thus would think that the answer is (C), increases, but the right answer apparently is (D) increases.

Thanks in advance for the help, and make it a great day!

2. Jan 18, 2017

### TSny

Yes, the charge moves from lower to higher potential. But, how do you relate the change in potential energy to the change in potential?

3. Jan 18, 2017

### Cutter Ketch

To be even more explicit than TSny, potential energy and potential are not the same thing. This problem is a test to see if you know the difference.