Electric Potential Energy of a Point Charge System
A system consists of three point charges, $$q_1 = +q$$, $$q_2 = +q$$, and $$q_3 = -2q$$, positioned at the vertices of an equilateral triangle with side length $$a$$. What is the total electric potential energy of this system?
A
-3
B
0
C
+1
D
-2
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