It is argued that inasmuch as the Aharonov-Bohm effect supports the view on the actuality of the vector potential at the microscopic level, by the same token our very familiar transformers seems to perform the same at the macroscopic level through its time dependence. Assuming this, gauge transformations are studied proceeding from the causal Lorentz gauge. The potentials of a moving charge in the Coulomb and Lorentz gauges are presented. The mechanical action of the potentials is also discussed, and it is shown that induction effects between line currents are included in the canonical momentum of the Hamiltonian formalism. It is finally argued that the reacher Geometric (Clifford) Algebra is more suited for description of the Electromagnetism.
scalar potential; vector potential; Gauge transformations; Aharonov-Bohm effect
