1 files changed, 18 insertions, 0 deletions
diff --git a/3651/CH6/EX6.4/4.sce b/3651/CH6/EX6.4/4.sce
new file mode 100644
index 000000000..dd207c663
--- /dev/null
+++ b/3651/CH6/EX6.4/4.sce
@@ -0,0 +1,18 @@
+//Variable declaration
+mew_e=0.13;    //mobility of electron(m**2/Vs)
+mew_h=0.05;    //mobility of holes(m**2/Vs)
+e=1.6*10**-19;
+ni=1.5*10**16;      //number of electron hole pairs
+N=5*10**28;
+
+//Calculation
+sigma1=ni*e*(mew_e+mew_h);    //intrinsic conductivity(ohm-1 m-1)
+ND=N/10**8;
+n=ni**2/ND;
+sigma2=ND*e*mew_e;     //conductivity(ohm-1 m-1)
+sigma3=ND*e*mew_h;     //conductivity(ohm-1 m-1)
+
+//Result
+printf('intrinsic conductivity is %0.3f *10**-3 ohm-1 m-1 %0.3f \n',(sigma1*10**3),sigma2)
+printf('conductivity during donor impurity is %0.3f ohm-1 m-1 \n',sigma2)
+printf('conductivity during acceptor impurity is %0.3f ohm-1 m-1',int(sigma3))
+\ No newline at end of file