1 files changed, 17 insertions, 0 deletions
diff --git a/3669/CH5/EX5.12/12.sce b/3669/CH5/EX5.12/12.sce
new file mode 100644
index 000000000..6a9ebbe9d
--- /dev/null
+++ b/3669/CH5/EX5.12/12.sce
@@ -0,0 +1,17 @@
+
+//Variable declaration
+A=10*10**-6;     //area(m**2)
+ne=1;    //number of electrons
+I=100;    //current(amperes)
+w=63.5;   //atomic weight
+e=1.6*10**-19;     //charge(c)
+D=8.92*10**3;   //density(kg/m**3)
+Na=6.02*10**26;   //avagadro number(per k mol)
+
+//Calculation
+n=ne*Na*D/w;
+J=I/A;
+vd=J/(n*e);      //drift velocity of free electrons(m/s)
+
+//Result
+printf('drift velocity of free electrons is %0.3f   *10**-3 m/s  \n',(vd*10**3))
+\ No newline at end of file