Paramagnetism: consider a solid in which J= ½ (m= ½ and -½) (N=n1 + n2). Then, when a magnetic field (H) is applied, the energy €l= -pH and €2= +pH. The average energy at T = 0 is - 0.65 Ne a. O b. - Ne c. O O d. - 0.5 Ne
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