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AmpereÕs Law: Flux of
mahnetic field through a closed surface is zero; therefore, there are no
magnetic monopoles.
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GaussÕ Law (early 1800s):
Flux of electric field through a closed surface is proportionally equal to
the charge inside.
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FaradayÕs Law (1831):
Electrioc field is induced by a changing magnetic field (magnet in a coil
experiment).
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MaxwellÕs equations
(mid-1800s): Unified light and electricity/magnetism.
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OhmÕs Law: A discontinuous
E-field at a boundary in conductivity.
Charges build at the boundaries.
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