Question

A positive charge is initially at rest and then allowed to move freely in a region where there is a uniform electric field. What happens to its electric potential energy as it begins to move?

A It stays the same since the electric field is uniform
B It goes up as the charge travels in the direction of the electric field
C It goes down as the charge travels in the direction of the electric field
D It goes down as the charge moves against the direction of the electric field
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