PHYS 2426 Engineering Physics II Problem 24.4 1. Three charges are placed on the x axis as shown in the figure. Charge q1 = +1.00 MC is located at x = 0.0, charge q2 = +3.00 MC is located at x = 0.500m and charge 93 = -2.00 MC is located at x = 1.20 m. Points A and B are located at x = 2.00m and x = 3.00m respectively. (a) Calculate the potential difference VA - VB. (b) From your answer to part (a), what is the direction of the electric field at point A? Explain. (c) A point charge qo = +1.00 nC is placed at point A. Will it move to point B under the action of the electric force or does it have to be moved to B by an external force acting against the electric force? (d) Calculate the change in the potential energy of go as it moves from A to B. 03 A it B