A +4.0-?C charge is placed on the x axis at x = +3.0 m, and a ?2.0-?C charge is located on the y axis at y = ?1.0 m. Point A is on the y axis at y = +4.0 m. Determine the electric potential at point A (relative to zero at the origin).
A. 6.0 kV
B. 8.4 kV
C. 9.6 kV
D. 4.8 kV
E. 3.6 kV
Answer: C
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