A. Current Flow and Maxwell

Maxwell’s Equations (James Clerk Maxwell: 1831–1879) stand as one of the great accomplishments in the development of electronic theory. Maxwell was not a scientist or an engineer, he was a mathematician. And his equations (with one important exception) grew out of the work of others. Nevertheless, his insight in seeing that what others had done before him was interconnected, and then in developing a set of equations unifying that work, stands unchallenged to this day.

Maxwell first published his equations in 1873 in his Treatise on Electricity and Magnetism. The beauty of the set of equations is that they completely describe a closed system. That is, if you have a stable system, and then change one variable, all other ...

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