Question: A point charge Q1= 50 C is initially at a distance of rA= 3 cm from another charge Q2= 28 C placed at point A.

A point charge Q1= 50 C is initially at a distance of rA= 3 cm from another charge Q2= 28 C placed at point A. Charge Q2 feels a repulsive force from Q1 that makes it move to point B at a distance rB= 4.5 cm. What is the magnitude of the resultant potential energy in this process?

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