1 files changed, 19 insertions, 0 deletions
diff --git a/3755/CH8/EX8.3/Ex8_3.sce b/3755/CH8/EX8.3/Ex8_3.sce
new file mode 100644
index 000000000..453da9785
--- /dev/null
+++ b/3755/CH8/EX8.3/Ex8_3.sce
@@ -0,0 +1,19 @@
+clear
+//
+//
+//
+
+//Variable declaration
+me=9.1*10^-31;          //mass of electron(kg)
+kb=1.38*10^-23;      //boltzmann constant
+T=300;      //temperature(K)
+h=6.62*10^-34;      //planck's constant
+Eg=0.7;     //band gap(eV)
+e=1.6*10^-19;      //charge(c)
+
+//Calculation
+x=2*%pi*me*kb*T/(h^2);  
+n=2*(x^(3/2))*exp(-Eg*e/(2*kb*T));       //density of holes and electrons(per m^3)
+
+//Result
+printf("\n density of holes and electrons is %0.3f *10^19 per m^3",n/10^19)