1 files changed, 21 insertions, 0 deletions
diff --git a/3840/CH5/EX5.11/Ex5_11.sce b/3840/CH5/EX5.11/Ex5_11.sce
new file mode 100644
index 000000000..436874481
--- /dev/null
+++ b/3840/CH5/EX5.11/Ex5_11.sce
@@ -0,0 +1,21 @@
+clear
+//
+//
+//
+
+//Variable declaration
+n=1                  //number of electrons
+NA=6.025*10**26      //avagadro number
+D=10500              //density(kg/m**3)
+M=107.9              //atomic weight(kg)
+m=9.11*10**-31       //mass(kg)
+h=6.63*10**-34       //plancks constant(Js)
+
+//Calculation
+n=n*NA*D/M           //electronic concentration(per m**3)
+x=(3*n/%pi)**(2/3)
+Ef=h**2*x/(8*m)      //fermi energy(J)
+
+//Result
+printf("\n electronic concentration is %0.3f  *10**28 per m**3",n/10**28)
+printf("\n fermi energy is %0.2f  *10**-19 J",Ef*10**19)