Recently the author showed that in a superconductor the existence of scatterers like non-magnetic impurities or phonons in their long wavelength limit never limits the infinite ‘Ohmic’ conductivity which could be expected in the absence of those scatterers. In this paper we discuss the...

How ordinarily existing scatters determine electric resistivity in a superconducting state is calculated here in order to explain why the electric resistance vanishes suddenly at the critical temperature Tc of a superconductor. Three mechanisms are considered: (1) non-magnetic impurity...