Conductivity and breakdown of solid dielectrics under the influence of electric and magnetic field

The range of solid dielectrics available for use in the field of electrical and electronics engineering are wide and properties of these materials are equally diverse. Apart from physical and chemical properties there are other innumerable factors that contribute to the dielectric behaviour of insulating materials. The interaction and interdependence of these factors are so complex that even a century of research work has not rendered any unified approach to the study of process of ionization, conduction and breakdown mechanism in dielectric media. Solid dielectrics as used in the field of electrical and electronics are not only subjected to electric field, but also under the influence of both electric and magnetic fields. Considering this, an attempt has been made in this paper to explain the conductivity of solid dielectric under the influence of both electric and magnetic fields which has not been presented so far in the available literature. A generalised mathematical treatment of conduction current of dielectric materials in the presence of both electric and cross-magnetic field has been also presented.