Mechanics / Electrodynamics
October 8, 2015
electric current, law of Ohm, first law of Joule, electric potential, electric energy, metallic conductor, electronic gas, electric resistance, resistivity, tension, electron, electronic cloud
Electric current in metallic conductor is not a current of electric charges or their porters – electrons; rather it is current of their kinetic energy. Electric current conductors e.g. resistors are provided with electronic gas that forms some kind of electronic cloud with electrons that while moving chaotically are trying to run with an equal velocity, thanks to which if in some place of the cloud they run for a while with a different velocity the next moment their velocities and their kinetic energies would get equal to all the others. ...