Answer 7.4.1


A) E is always to the right. At the beginning of the run, the B is into the screen, and at the end of the run is out of the screen.

B) (omega_c)*(tau) is the ratio of y- to x-components of the drift velocity, or about 0.5.

C) The scale of the thermal fuzzing (in k) relative to k_f is about 10%. Since E varies as k^2, the corresponding fuzzing in energy would be 20% or T is about 1.5 eV (expressed as an energy).