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A bar magnetic made of steel has a magne...

A bar magnetic made of steel has a magnetic moment of `2*5Am^2` and a mass of `6*6g`. If density of stell is `7*9xx10^-3kg//m^3`, what is the intensity of magnetisation?

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Here, `M=2*5Am^2, m=6*6g=6*6xx10^-3kg`
`rho=7*9xx10^3kg//m^3, I=?`
`I=M/V=(M)/(m//rho)=(Mrho)/(m)=(2*5xx7*9xx10^3)/(6*6xx10^-3)=2*99xx10^6Am^-1`
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