Answer to Question #17621 in Electric Circuits for Eliud Serrano
The electric potential at the origin of an xy-coordinate system is 40 V. A -8.0-μC charge is brought from x = +∞ to that point. What is the electric potential energy of this charge at the origin?
A) 8.0 μJ
B) 40 μJ
C) -3.2 × 10-4 J
D) -40 μJ
E) 3.2 × 10-4 J
Potential energy Ep of that charge is Ep = (40 V)*(-8.0-μC) = -3.2 × 10-4 J