The effect of the surrounding media on the distribution of electromagnetic fields in a conductor

The distribution of the current-density, and the associated electric and magnetic fields within long, straight conductors of circular and rectangular cross-section, is well known. Much of the associated analytical and experimental work was stimulated by the development of high-frequency line communications. The theoretical work was naturally based on the differential equation form of Maxwell's field equations. The concepts of field impedance and equivalent field networks were evolved to aid the understanding of line, wave guide and indeed, free-space transmission systems. The work described in this thesis has arisen out of an attempt to exploit the field impedance and equivalent field network concepts to explain the current-density and field distributions in induct or and transformer-like structures. [Continues.]