Development of Physical Notions About Process of Electric Conductivity in Metal

It is shown that the electric polarization of a metal is caused by its ordered mechanically stressed state due to the electric conduction process, with electric voltage drop in the conductor representing the work of extraneous forces, collected in the system while its configuration change. To develop physical notions about the interaction of metals with electromagnetic field a notion of a vector electric potential of a conductor with current is introduced and its properties and feasibility of its indirect observation are discussed.