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//Example 2_6_u2
clc();
clear;
//To calculate the fermi energy level
h=4.14*10^-15 //units in m^2 kg s^-1
n=8.49*10^28 //units in m^-3
m=9.1*10^-31 //units in Kgs
Ef=(h^2*(3*n)^0.666)/(8*m*(%pi)^0.666) //units in J
Ef=Ef*1.67*10^-19 //units in eV
printf("Fermi energy for copper is Ef=%.2f eV",Ef)
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