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//Section-12,Example-4,Page no.-SS.59
//To calculate concentration of holes and electrons in an n-type silicon.
clc;
C_n=0.1 //(ohm-cm)^-1
e=1.6*10^-19 //Coulombs
u_e=1300 //cm^2/Vsec
N_D=C_n/(e*u_e) //atoms/cm^3
n=N_D //electrons/cm^3
n_i=1.5*10^10 //per cm^3
disp(n,'Concentration of electrons(per cm^3)')
p=((n_i)^2)/n
disp(p,'Concentration of holes(per cm^3)')
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