Electrical conductivity or specific conductance is the reciprocal of electrical resistivity. The inverse of conductivity is resistivity (or R per unit thickness). Resistivity and conductivity are reciprocals&colon; formula 3. Resistivity and conductivity are reciprocals&colon; formula 6. Conductivity is the inverse (reciprocal) of resistivity. This relationship is quantified by resistivity or conductivity. These materials combine high magnetic permeability with high bulk electrical resistivity. Resistivity and porosity measurements are used to calculate water saturation. The thermal conductivity was represented by the reciprocal of the resistivity of the paper. More details can be found in the article&colon; Electrical resistivity and conductivity. Silicon is an important constituent of electrical steel, modifying its resistivity and ferromagnetic properties. In general, intrinsic semiconductor resistivity decreases with increasing temperature. The electrical resistivity of a metallic conductor decreases gradually as temperature is lowered. Eddy currents in conductors of non-zero resistivity generate heat as well as electromagnetic forces. The value of the residual resistivity of a metal is decided by its impurity concentration.