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?

A bar magnetic made of steel has a magnetic moment of `2*5Am^2` and a

1.	A bar magnetic made of steel has a magnetic moment of `25Am^2` and a mass of `66g`. If density of stell is `7*9xx10^-3kg//m^3`, what is the intensity of magnetisation?
Answer» Here, `M=25Am^2, m=66g=66xx10^-3kg` `rho=79xx10^3kg//m^3, I=?` `I=M/V=(M)/(m//rho)=(Mrho)/(m)=(25xx79xx10^3)/(66xx10^-3)=299xx10^6Am^-1`

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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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A bar magnetic made of steel has a magnetic moment of `25Am^2` and a mass of `66g`. If density of stell is `7*9xx10^-3kg//m^3`, what is the intensity of magnetisation?