Two point charges are placed on the x axis. (Figure 1)The first charge, q1 = 8.00nC , is placed a distance 16.0m from the origin along the positive x axis; the second charge, q2 = 6.00nC , is placed a distance 9.00m from the origin along the negative x axis. EAx, EAy = 0,0.300 N/C An unknown additional charge q3 is now placed at point B, located at coordinates (0 m, 15.0 m ).Find the magnitude and sign of q3 needed to make the total electric field at point A equal to zero.