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//Chapter 11 : Free Electron Theory Of Metals
clear;
//Variable declaration
EF=1.1214*10**-18 //fermi energy in J
m=9.11*10**-31 //Mass of electron
h=6.63*10**-34 //planck's constant
//Calculations
n=((8*m*EF)/(h**2))**(3/2)*(%pi/3)/10**28
//Result
mprintf("No. of free electrons per unit volume= %1.3f*10**28 electrons per meter**3",n)
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