2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35027An electromagnetic analog of the Kerr-Newman solution in general relativity is derived, based on Minkowski's formulation for electromagnetic fields in moving media. The equivalent system is a distribution of charges and currents largely localized within a spinning disk of radius a. This occurs in a rotating medium of inhomogeneous index of refraction and "frame dragging" at exactly half the angular velocity of the electrical charge.LaTeX manuscript 8 pages 0 figuresGeneral Relativity and Quantum Cosmologytext