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A bar magnet made of steel has a magnetic moment of 5 Am2 and a mass of 40 gm. If the density of steel is  8×103 kg/m3. The intensity of magnetization of the magnet is ___ ×104 A/m

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Detailed Solution

The volume of the bar magnet is  V=massdensity=40×10−38×103=0.5×10−5 m3The intensity of magnetization is  I=MV=50.5×10−5=10×105=106 A/m∴ x×104=106 x=102=100.
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A bar magnet made of steel has a magnetic moment of 5 Am2 and a mass of 40 gm. If the density of steel is  8×103 kg/m3. The intensity of magnetization of the magnet is ___ ×104 A/m