When charge Q1 is placed at point P1, the resulting potential at point P is V1. When Q2 is placed at point P2 after Q1 is in position at P1, the resulting potential at P becomes V2. What is the potential at point P if charge Q1 is then removed?
A) V1 - V2
B) (V1 + V2) /2
C) V1 + V2
D) V2 - V1
Correct Answer:
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