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Poles of a Magnet

Why the unit ...

Question

Why the unit of magnetic pole strength is Ampere.metre

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Solution

Unit of magnetic moment=Am^2. Unit of magnetic length=m. We know that, Magnetic moment=Magnetic length*Magnetic pole strength So,Magnetic pole strength=Magnetic moment/Magnetic length =Am^2/m =Am Again,unit of pole strength is also WEBER(Wb)

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