132 Page 6 130 Total / 200 = PROBLEM 1A: Consider the following charge arrangement. Charge qi is negatively charged; charges q2. q3, q4, and qs are positively charged. All 5 charges have magnitude 3.0 nC. The origin is marked by an X. All coordinates shown are in meters (e.g. q4 has coordinates x = -3m, y = -4m). (A) (10 pts) Draw and label all electric fields at the origin. (B) (14 pts) Calculate the magnitude and direction of the net electric field at the origin. (Note: If you can cancel any components without doing the math, you must explain why.) 2 3 * 4 5 F = Direction: (C) (8 pts) Calculate the net electric potential at the origin. V =