a) Under equilibrium conditions and T>0 K what is the probability of an electron state being occupied if it is located at the Fermi level?
b) If Ef is positioned at Ec, determine numerically the probability of finding electrons in states Ec-kT
c) The probability a state is filled at Ec-kT is equil to the probability a state is empty at Ec-kT. Where the fermi level located?