the electric force between Q1 and Q2 is 1.2 going to left. determine the distance between the two charges, and the electric field, E1 and E2, of the electric charges if Q1 is 6 x 10^-6 C, Q2 is 4 x 10^-6 and test charge of +1 x 10^-6 C

1 answer

E1=kq1/x^2 solve for x
E2=kq2/(d-x)^2 solve for distance d.
I have no idea what you are doing with the test charge.