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Question
Explain Curie’s law for a paramagnetic substance.
Solution
Magnetic susceptibility inversely proportional to temperature.
`I_m prop B`
`I_m prop 1/T`
`:. I_m prop B/T`
`I_m prop (CB)/T`
`I_m = (C.mu.H)/T`
`I_m/H = (Cmu)/T`
`χ = C/T`
`:. χ prop C/T`
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