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+//Variable declaration
+m=9.1*10**-31
+k=1.38*10**-23
+T=300
+h=6.626*10**-34
+Eg=1.1
+e=1.6*10**-19
+mu_e=0.48
+mu_h=0.013
+//Calculations
+ni=2*((2*%pi*m*k*T)/h**2)**(3/2)*exp(-(Eg*e)/(2*k*T))
+sigma=ni*e*(mu_e+mu_h)
+
+//Result
+printf('Conductivity = %0.3f *10**-3 ohm**-1 m**-1 \n',(sigma*10**3)) \ No newline at end of file