A LIMITATION OF WEBER LAW

We present Weber's law and its main properties. We discuss its relation with the experiments of mass variation with velocity. Then we calculate the energy and force on a charge moving inside and outside a capacitor according to Weber's electrodynamics. We discuss the consequences of this relation, and in particular we show that in this model a charge could attain velocities larger than the light velocity in a limited space due do a finite and feasible voltage difference. As this has never been observed we conclude that Weber's electrodynamics should not be applied to charges moving near the light velocity.