On the Resistivity of Inhomogeneous Metals

The current flowing in a metal with an inhomogeneous distribution of impurities is investigated by means of a Boltzmann equation accounting for the conservation of matter in the collision term. The treatment extends that of Herring for the case where the extension of inhomogeneities is comparable to the electron mean free path. The results offer a method to measure the average extension of randomly distributed inhomogeneities. [Russian Text Ignored].