Two negative charges each of unit magnitude and a positive charge q are placed along a straight line. At what value of q will the system be in equilibrium? Check whether it is stable, unstable or neutral equilibrium.
Physics - drwls, Saturday, February 16, 2013 at 7:20am
If q = 1/4 "units", and the positive charge q is placed midway between the negative charges, there will be stable equilibrium for the positive charge.