1 files changed, 20 insertions, 0 deletions
diff --git a/3665/CH7/EX7.2/Ex7_2.sce b/3665/CH7/EX7.2/Ex7_2.sce
new file mode 100644
index 000000000..c4588d2b4
--- /dev/null
+++ b/3665/CH7/EX7.2/Ex7_2.sce
@@ -0,0 +1,20 @@
+clc//
+//
+//
+
+//Variable declaration
+d=8.92*10^3;     //density(kg/m^3)
+rho=1.73*10^-8;     //resistivity of copper(ohm m)
+NA=6.02*10^26;       //avagadro number(per k mol)
+Aw=63.5;      //atomic weight
+m=9.1*10^-31;     //mass(kg)
+e=1.6*10^-19;     //charge(coulomb)
+
+//Calculation
+n=d*NA/Aw;     //density of electrons
+mew=1/(rho*n*e);    //mobility of electrons(m^2/Vs)
+t=m/(n*e^2*rho);    //average time of collision(s)
+
+//Result
+printf("\n mobility of electrons is %0.3f *10^-2 m V-1 s-1",mew*10^2)
+printf("\n average time of collision is %0.2f *10^-14 s",t*10^14)