A charge q of magnitude 6.4 × 10-19 coulombs moves from point A to point B in an electric field of 6.5 × 104 newtons/coulomb. The distance between A and B is 1.2 × 10-2 meters and the path between A and B is parallel to the field. What is the magnitude of the difference in the potential energy?

Question

irishboy123 · Answer

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think about the "work" required to move the charge within that field

use $F = Eq$

and 

where forces are constant

$W = F.x$