In the figure,+4.0-μC and -4.0-μC point charges are located as shown.Now an additional +2.00-µC point charge is placed at point A.What is the electric potential energy of this system of three charges,relative to infinity? (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2) 
A) +264 mJ
B) -264 mJ
C) 0.00 J
D) -26.4 mJ
E) +26.4 mJ
Correct Answer:
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