PHYS 301,
Homework Set V,
(Due 1400pm, Oct.20, 2006)
Read section 4.2, 4.3, 4.4 of Chapter 4. Especially, example 4.2, 4.3, 4.5, 4.7.
1) Derive the Curie’s Law for the polarizability of molecules with permanent dipole moments. Hint: Assuming the electric field is along the z-axis; the Boltzmann weight for a dipole to have theta-polar angle is exp (-U/kT); U is the energy of such a dipole, T is the temperature.
2) Problem 4.10
3) Problem 4.14
4) Problem 4.16
5) Problem 4.18
6) Problem 4.24 (Read Example 4.7 first; pay attention to the boundary conditions.)
Important notice: Please mark
your calendar: Mid-term Exam----Nov 3.