Three charges are arranged as shown in the diagram. 1.500 JC -2.400 JC 1 3 4.000 cm 3.000 cm 3.000 cm P 2 4.000 cm 1.200 JC2a. To find the electric field at point P, first find the magnitude of electric field at point P due to each charge. (Express your answer in terms of 10-6 k.) E1 = x 106 k E2 = x 10-6 k E3 = x 10 k2b. Fill out the following table for x and y components of the electric field contribution from each charge (in x 106 k): x 106 k X y E1 E2 E3 Sum2c. What is the magnitude and direction of the electric field at point P? Ep = N / C@ above positive x-axis2d. To find the electric potential at point P, first find the contribution of electric potential from each charge. (Express your answer in terms of 10-6 k) V1 = x 106 k V2 = x 10-6 k V3 = x 10 k Then, find the sum of potential at P in kilovolts. Vp = KV2e. To find the total electric potential energy of the 3-charge system, first find electric potential between each pair of charges. (Express your answer in terms of 10-12 k) U12 = x 10-12 k U13 = x 10-12 k U23 = x 10-12 k Then add up for the total potential energy: Utot =