The electric potential at the origin of an xy-coordinate system is 40 V. A -8.0-?C charge is brought from x = +? to that point. What is the electric potential energy of this charge at the origin?
A) -3.2 × 10-4 J
B) 3.2 × 10-4 J
C) -40 ?J
D) 40 ?J
E) 8.0 ?J
A
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