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Ampère's circuital law
In
classical electromagnetism
,
Ampère's circuital law
, discovered by
André-Marie Ampère
in 1826, relates the
integrated
magnetic field
around a closed loop to the
electric current
passing through the loop.
James Clerk Maxwell
derived it again using
hydrodynamics
in his 1861 paper and it is now one of the
Maxwell equations
, which form the basis of
classical
electromagnetism
.
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