1 files changed, 25 insertions, 0 deletions
diff --git a/3665/CH8/EX8.8/Ex8_8.sce b/3665/CH8/EX8.8/Ex8_8.sce
new file mode 100644
index 000000000..dcf5b6f3d
--- /dev/null
+++ b/3665/CH8/EX8.8/Ex8_8.sce
@@ -0,0 +1,25 @@
+clc//
+//
+//
+
+//Variable declaration
+e=1.6*10^-19;  
+mew_e=0.36;     //electron mobility(m^2/Vs)
+mew_h=0.17;     //hole mobility(m^2/Vs)
+rho=2.12;       //resistivity(ohm m)
+T=300;      //temperature(K)
+k=1.38*10^-23;   //boltzmann constant
+m=9.109*10^-31;    //mass(kg)
+h=6.626*10^-34;    //plancks constant
+
+//Calculation
+sigma=1/rho;
+ni=sigma/(e*(mew_e+mew_h));
+C=2*((2*%pi*m*k/h^2)^(3/2));
+y=C*T^(3/2)/ni;
+z=log(y);
+Eg=2*k*T*z/(1.6*10^-19);        //forbidden energy gap(eV)
+
+//Result
+printf("\n forbidden energy gap is %0.3f eV",Eg)
+printf("\n answer varies due to rounding off errors")