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प्रश्न
State Ampere’s circuital law.
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उत्तर
The line integral of the magnetic field over a closed-loop is μ0 times the net current enclosed by loop.
`oint_"C" vec"B" * vec"l" = mu_circ "I"_"enclosed"`
`"I"_"enclosed"` → net current in the closed-loop C.
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