## Faraday's Law

Maxwell's EquationsMaxwell's Equations summarize all of Electricity and Magnetism just as Newton's Laws of Motion summarize all of Mechanics. They can be written as four

integral equations-- integrals over a closed surface or integrals around a closed path.

and

are Gauss's Law for the electric field

Eand the magnetic fieldB. Electric field lines originate on positive charges and terminate on negative charges. Gauss's Law re-states this. Magnetic field lines donotoriginate or terminate -- they are continuous loops -- and that is what Gauss's Law for the magnetic field states.

and

tell us that a

changingmagnetic field causes and electric field and that achangingelectric field causes an magnetic field. This is the "basis" of electromagnetic waves!

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