Acharge q1 = 5 μc is at the origin. a second charge q2 = -3 μc is on the x-axis, 0.8 m from the origin. the electric field at a point on the y-axis, 0.5 m from the origin is: a. 1.66 x 105 n/c, 810 below the positive x-axis b. 1.66 x 105 n/c, 810 above the positive x-axis c. 1.66 x 105 n/c, 810 below the negative x-axis d. 1.66 x 105 n/c, 810 above the negative x-axis