The full system of partial differential equations describing the electromagnetic field was published for the first time by James Clerk Maxwell in his work A Treatise on Electricity and Magnetism, Vol. I,II [91,92] in the year 1862. He based his theory on the work and experiments of Ampère, Gauss, and Faraday. His great contribution lies in the unification of the different equations to a set of partial differential equations. The introduction of the displacement current, which generalizes Ampère’s law, allowed him to forsee the physical phenomena of the propagation of electromagnetic waves.
KeywordsPermeability Microwave Anisotropy Ferrite Acoustics
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