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Question 23: NCERT Solutions for 12th Class Physics: Chapter 5-Magnetism and Matter

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Question 23: NCERT Solutions for 12th Class Physics: Chapter 5-Magnetism and Matter

A sample of paramagnetic salt contains 2.0 × 1024 atomic dipoles each of dipole moment 1.5 × 10-23 J T-1. The sample is placed under a homogeneous magnetic field of 0.64 T, and cooled to a temperature of 4.2 K. The degree of magnetic saturation achieved is equal to 15%. What is the total dipole moment of the sample for a magnetic field of 0.98 T and a temperature of 2.8 K? (Assume Curie’s law)

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