(a) Express the Coulomb logarithm in terms of the Debye number, N D , in the classical...

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(a) Express the Coulomb logarithm in terms of the Debye number, ND, in the classical regime, where bmin ∼ b0.

(b) What range of electron temperatures corresponds to the classical regime, and what range to the quantum regime?

(c) Use the representative parameters from Table 20.1 to evaluate Coulomb logarithms for the Sun’s core, a tokamak, and the interstellar medium, and verify that they lie in the range

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