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The magnetic moment produced in a substance of 1 g is $6 x 10^{- 7} {Am}^{2}$ . If its density is $5 g / {cm}^{3}$ , then the intensity of magnetisation in A/m will be

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8.3 x 106

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Correct option is B

I=MV=Mmass/densityGiven mass = 1g = 10-3 kgDensity = 5 g/cm3=5 x 10-3 kg(10-2m)3=5 x 103 kg/m3Hence, I=6 x 10-7 x 5 x 10310-3=3 A/m

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The magnetic moment produced in a substance of 1 g is 6 x 10-7 Am2. If its density is 5 g/cm3, then the intensity of magnetisation in A/m will be

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The magnetic moment produced in a substance of 1 g is $6 x 10^{- 7} {Am}^{2}$ . If its density is $5 g / {cm}^{3}$ , then the intensity of magnetisation in A/m will be