Two charges are located on the x axis: q1 = +5.8 JC at X1 = +4.8 cm, and q2 = +5.8 JC at X2 = -4.8 cm. Two other charges are located on the y axis: 93 = +2.8 JC at y3 = +4.9 cm, and q4 = -12 JC at y4 = +7.9 cm. Find (a) the magnitude and (b) the direction of the net electric field at the origin. 43 92 41 - - 41 (a) Number i Units (b) The net electric field points