The potential energy of the system is given by:
, where k is Coulomb's constant and r is the distance between two charges q1 and q2.
The given charges are equal in magnitude but opposite in sign.
Suppose you have two point charges of opposite sign. As you move them farther and farther apart, the potential energy of this system relative to infinity
(a) stays the same.
(d) The answer would depend on the path of motion
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