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+// Exa 1.14
+clc;
+clear;
+close;
+format('v',6)
+// Given data
+n_i = 1.5*10^10;// in electrons/cm^3
+N_D = 10^17;// in electrons/cm^3
+n = N_D;// in electrons/cm^3
+// The minority carrier concentration
+p = (n_i^2)/n;// in holes/cm^3
+disp(p,"The minority carrier concentration in holes/cm^3 is");
+kT = 0.026;
+// The location of Fermi level 
+E_FminusEi = kT*log(N_D/n_i);// in eV
+disp(E_FminusEi,"The location of Fermi level in eV is");