A) Two point charges 36.0 uC (on the left side of the negative charge) and -15.0 uC, fixed on the x-axis, are separated from each other by a distance of 17 centimeter. Find at what point along the x-axis is the electric potential equal to Zero?
B) Determine the voltage at a point on the x-axis, 15 centimeter to the right of the negative charge?