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## Homework Statement

As an electron (q2) moves from point A to point B, it moves farther from a positive charge (q1). Does the electric potential energy increase, decrease, or stay the same.

## Homework Equations

U=-kq1q2/r

## The Attempt at a Solution

The electric potential energy decreases in magnitude and absolutely.

Since r is increasing, the magnitude of U is decreasing. Since q1 & q2 are of opposite sign, (-kq1q2/r) > 0 , so U is also getting closer to zero. If q1 & q2 had the same charge, the magnitude of U would be decreasing, but it would be getting less negative so actually increasing.

I am concerned because an answer I found online has it the other way around.