First slide
Magnetic properties of matter
Question

The dipole moment of each molecule of a paramagnetic gas is 1.5 × 10-23 Am2. The temperature of gas is 270C and the number of molecules per unit volume in it is 2 × 1026 m-3. The maximum possible intensity of magnetization in the gas will be

Moderate
Solution

Given, M=1.5 × 1023 Am2; NV=2 × 1026 m3;

Intensity of Magnetization = I=MNV=1.5 × 1023 × 2 ×1026=3 ×103 Am1

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