1 files changed, 28 insertions, 0 deletions
diff --git a/3763/CH5/EX5.1/Ex5_1.sce b/3763/CH5/EX5.1/Ex5_1.sce
new file mode 100644
index 000000000..68e8666c5
--- /dev/null
+++ b/3763/CH5/EX5.1/Ex5_1.sce
@@ -0,0 +1,28 @@
+clear
+//
+//
+//
+
+//Variable declaration
+Na=6.023*10**26    //avagadro number
+e=1.602*10**-19
+d=8960     //density
+N=1       //number of free electrons
+w=63.54    //atomic weight
+i=10      //current(ampere)
+m=9.1*10**-31    
+rho=2*10**-8   //resistivity(ohm m)
+r=0.08*10**-2    //radius(m)
+c=1.6*10**6   //mean thermal velocity(m/s)
+
+//Calculation
+A=%pi*r**2    //area(m**2)
+n=Na*d*N/w
+vd=i/(A*n*e)     //drift speed(m/s)
+tow_c=m/(n*e**2*rho)
+lamda=tow_c*c      //mean free path(m)
+
+//Result
+printf("\n drift speed is %0.1f  *10**-5 m/s",vd*10**5)
+printf("\n mean free path is %0.2f  *10**-8 m",lamda*10**8)
+printf("\n answer given in the book is wrong")