Consider charges placed along an x-axis. If a charge of +17 nC is placed at x = 0.00 m and a charge of +32 nC is placed at x = 1.00 m, where would a third charge of -14.0 nC be in electrostatic equilibrium? Give the x-coordinate for your answer in meters and with three significant figures.

Answer 1

Obviously, the negative charge has to go between the positive charges.

let x be distance frm origin.

17q/x^2=14q/(1-x)^2

solve that quadratic for x.