The point particle system in the figure on below is organized in two separate charge pairs consisting of a charge q1 = 5.0 C and a charge q2 = -10 C. The distance between the two charges within each pair are b = 0.40 m. A point P is located in the middle between the two charge pairs and at the same time on the vertical line between the charges q1 and q2 as shown in the figure. The distance from charge q1 in the upper charge pair is a = 0.30 m. What is the electrical potential V at point P? b 92