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(Isolated dipoles in magnetic field)
An isolated system composed of 4 dipoles in the presence of a Magnetic field B = 4 T. These dipole can either be in up or down state; (µB = 9.3 J T-1) Find:
1. the number of macroscopic states;
2. the statistical weight for the state n = 2;
3. the energy for the system at n = 3.
4. What is the entropy for the most random state ?
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