A +4.0-$\pm$C charge is placed on the x axis at x = +3.0 m,and a -2.0-$\pm$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

Question

Quizplus · Accepted Answer

The electric potential at a point due to a point charge is given by V = kQ/r. Calculate the potential at point A due to each charge separately and sum them. For the +4.0 μC charge, r = 5 m (distance from (3,0) to (0,4)), and for the -2.0 μC charge, r = 5 m (distance from (0,-1) to (0,4)). The total potential is 9.6 kV.

A +40- ±\pm± C Charge Is Placed on the X Axis at X

A +40- $\pm$ C Charge Is Placed on the X Axis at X