1 files changed, 25 insertions, 0 deletions
diff --git a/3840/CH5/EX5.5/Ex5_5.sce b/3840/CH5/EX5.5/Ex5_5.sce
new file mode 100644
index 000000000..43d1fa802
--- /dev/null
+++ b/3840/CH5/EX5.5/Ex5_5.sce
@@ -0,0 +1,25 @@
+clear
+//
+//
+//
+
+//Variable declaration
+D=2.7*10**3       //density(kg/m**3)
+rho=2.7*10**-8    //resistivity(ohm m)
+w=26.98           //atomic weight
+Na=6.025*10**26   //avagadro number
+e=1.6*10**-19     //charge(c)
+L=5               //length(m)
+R=0.06            //resistance(ohm)
+I=15              //current(A)
+n=3               //number of electrons
+
+//Calculation
+N=n*D*Na/w           //number of conduction electrons(/m**3)
+mew=1/(rho*N*e)      //mobility(m**2/Vs)
+vd=I*R/(L*rho*N*e)   //drift velocity(m/s)
+
+//Result
+printf("\n number of conduction electrons is %0.4f  *10**29 /m**3",N/10**29)
+printf("\n mobility is %0.5f  m**2/Vs",mew)
+printf("\n drift velocity is %0.1f  *10**-4 m/s",vd*10**4)