Question: Q2. (a) The interaction energy between electrical dipoles (p) and an homogenous electrical field (E) taking into account thermal fluctuation is given by: U(E,T) -

Q2. (a) The interaction energy between electrical dipoles (p) and an homogenous electrical field (E) taking into account thermal fluctuation is given by: U(E,T) - -p . E coth x -- with x = PE X K T where coth is the hyperbolic cotangent function. (i) What happens to the energy and to the electrical dipoles when the extremely large electrical field is applied? (ii) Derive the Debye-Langevin susceptibility

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