Consider a silicon wafer having Nc=2.8*1019cm-3 and the Fermi energy is .25eV below the conduction band. Calculate the equilibrium concentrations of electrons at T=300K?

Consider a silicon wafer having Nc=2.8*1019cm-3 and the Fermi energy i

1.	Consider a silicon wafer having Nc=2.8*1019cm-3 and the Fermi energy is .25eV below the conduction band. Calculate the equilibrium concentrations of electrons at T=300K?
A.	a)18*1016cm-3
B.	b)1.8*1016cm-3
C.	c)1.8*1014cm-3
D.	d)180*1016cm-3
Answer» B.