In conduction, dissolved charged particles (ions) in a sample oscillate back and forth under the influencing electric force of microwaves creating an electric current. This current faces internal resistance because of collisions of charged species with neighboring molecules or atoms, which cause materials to heat up (Metaxas, 1996 and Ponne, 1996). The conduction principal has much stronger effect in comparison to dipolar polarization for heat producing capacity (Keiko, 2003). The interfacial polarization is a combination of conduction and dipolar polarization. It is important for such a heating system that includes a conducting material scattered in a non-conducting medium like dispersion of metal particles in sulfur.