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Compute the intensity of magnetisation o...

Compute the intensity of magnetisation of the bar magnet whose mass, magnetic moment and density are 200 g. 2 A `m^(2)` and 8 g `cm^(-3)`,respectively.

Text Solution

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`Density=(Mass)/(Volume)impliesVolume=(Mass)/(Density)`
`Volume=(200xx10^(-3)kg)/((8xx10^(-3)kg)xx10^(6)m^(-3))=25xx10^(-6)m^(3)`
Magnitude of magnetic moment `p_m=1Am^(2)`
Intensity of magnetization.
`I=("Magnetic moment")/(Volume)=2/(25xx10^(-6))`
M=`0.8xx10^(5)Am^(-1)`
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