A paramagnetic sample shows a magnetization of 8 A/m when placed in an external magnetic field of 0.06T at a temperature of 4 K. When the sample is placed in an external magnetic field of 0.02 T at a temperature of 16 K. The magnetization will be

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323A/m

23A/m

6 A/m

2.4 A/m

answer is B.

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Detailed Solution

χ =IH again χ=CT so, IH=CT; I =CHTI2I1=H2T1H1T2=0.020.06416=112I2= 812=23

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