A small object with a charge of q = 15.0 µC travels from the origin to the point (x, y) = (20.0 cm, 50.0 cm) in the presence of a uniform electric fieldE = 220î V/m. Determine the following. (a) the change in the electric potential energy (in J) of the object-field system 0.0006 How is the change in electric potential energy of the charge related to the work done on the charge by the conservative force? Write the force acting on the charge and the displacemen constant, how can you determine the work done on the charge? J (b) the electric potential difference (in V) through which the object moves -40 How is the electric potential difference related to the electric potential energy? Knowing the change in electric potential energy from part (a) and the charge, how can you determine the

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