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[" MAGNETICEFFECT OF "],[" A circular co...

[" MAGNETICEFFECT OF "],[" A circular coil of wire consisting of 100turns,"],[" each of radius 8.0cm carries a current of 0.40"],[" A.What is the magnitude of the magnetic field "],[B" at the centre of the coil? [Ans: pi times 10-4T] "]

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