A small object with a charge of q = 12.0 µC travels from the origin to the point (x, y) = (20.0 cm, 50.0 cm) in the presence of a uniform electric field E = 300î V/m. Determine the following. (a) the change in the electric potential energy (in J) of the object-field system (b) the electric potential difference (in V) through which the object moves V
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