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The Maxwell equations are the set of four fundamental equations governing electromagnetism (i.e., the behavior of
electric and magnetic fields). They were first written down in
complete form by physicist James Clerk Maxwell,  who added the so-called displacement
current term to the final equation, although steady-state forms were known earlier.
For time-varying fields, the differential form of these equations in cgs is
where  is the divergence,   is the curl,  is the
constant pi, E is the electric field, B is the magnetic field,
 is the charge density, c is the speed of light, and J is the vector current
density.
 Conductor, Dielectric, Maxwell Equations--Dielectric, Maxwell Equations--Steady State
© 1996-2007 Eric W. Weisstein
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