There are four charges, each with a magnitude of 2.0 C. Two are positive and two are

Question:

There are four charges, each with a magnitude of 2.0 µC. Two are positive and two are negative. The charges are fixed to the corners of a 0.30-m square, one to a corner, in such a way that the net force on any charge is directed toward the center of the square. Find the magnitude of the net electrostatic force experienced by any charge.