Main Question or Discussion Point
Suppose there are two electrons which are not moving relative to each other. Then in the reference frame of either electron, there is an electrostatic force pushing the two electrons apart, and they will move apart. However, if an observer is in a reference frame moving relative to the electrons, he or she will observe two parallel currents, which will create magnetic fields causing the electrons to attract, according to Ampere's law. Hence such an observer will see the two electrons move closer together. How can this be resolved? Am I simply wrong? Please help me out!