A point charge q = +42.0 μC moves from A to B separated by a distance d = 0.182 m in the presence of an external electric field E→ of magnitude 260 N/C directed toward the right as in the following figure. (a) Find the electric force exerted on the charge. magnitude N direction (b) Find the work done by the electric force. J (c) Find the change in the electric potential energy of the charge. J (d) Find the potential difference between A and B. vB−vA = v