Define S to be the number of energy states (per cm ) available between Ec and Ec + KT. We can think of S as the number of states available near the bottom of the conduction band. (a) Calculate the value of S for silicon at 7 = 300 K. Use m,/mo = 1.18 for this question. (b) How does S compare to the effective density of states of the conduction band (Nc) for silicon