Three point charges are arranged at the corners of a square of side as shown. a) what is the potential at the fourth corner (point a)? b) find the magnitude and direction of the electric field at point a. (show your choice of coordinate system.) c) what is the total potential energy of this system? hint: to calculate the total potential energy: re-construct the system by bringing each charge (from infinity) to its current position.
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Three point charges are arranged at the corners of a square of side as shown. a) what is the potenti...
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