Physics for Electrical Engineers Prof.B.JalaliEE2Homework #2 Due: Feb 02, 2010 Please turn in your homework in class. 1.(a) Calculate the Fermi energy (in units of eV) in the metallic state of silver. Density = 10.5 g/cm3, atomic weight = 108. Assume 1 electron per atom. (b) Calculate the average speed and average energy of the electrons at T=0K. 2. (a) Show that the Fermi function is symmetric about EF, i.e., f(EF+ΔE)=1 - f(EF-ΔE) (b) Show that when (E - EF) ≥2kT, f(E) ≈exp −−⎧⎨⎩⎫⎬⎭EEkTF. Actually, calculate f(E) for (E- EF) equal to 2kT, 3kT
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This note was uploaded on 01/16/2012 for the course EE 101 taught by Professor Williams during the Spring '07 term at UCLA.