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+
+//Variable declaration
+mewe=0.135; //mobility of electrons(m**2/Vs)
+mewh=0.048; //mobility of holes(m**2/Vs)
+e=1.6*10**-19;
+ni=1.5*10**16; //intrinsic concentration(per m**3)
+Nd=10**23; //doping concentration(per m**3)
+
+//Calculation
+sigma=ni*e*(mewe+mewh); //conductivity(per ohm m)
+p=ni**2/Nd; //hole concentration(per m**3)
+sigman=Nd*e*mewe; //conductivity(per ohm m)
+
+//Result
+printf('conductivity is %0.3f *10**-3 per ohm m \n',(sigma*10**3))
+printf('hole concentration is %0.3f *10**9 per m**3 \n',p/10**9)
+printf('conductivity is %0.3f *10**3 per ohm m \n',sigman/10**3) \ No newline at end of file