1 files changed, 18 insertions, 0 deletions
diff --git a/3651/CH6/EX6.1/1.sce b/3651/CH6/EX6.1/1.sce
new file mode 100644
index 000000000..e8d453386
--- /dev/null
+++ b/3651/CH6/EX6.1/1.sce
@@ -0,0 +1,18 @@
+//Variable declaration
+ni1=2.5*10**19;    //number of electron hole pairs
+T1=300;     //temperature(K)
+Eg1=0.72*1.6*10**-19;    //energy gap(J)
+k=1.38*10**-23;     //boltzmann constant
+T2=310;    //temperature(K)
+Eg2=1.12*1.6*10**-19;    //energy gap(J)
+
+//Calculation
+x1=-Eg1/(2*k*T1);
+y1=(T1**(3/2))*exp(x1);
+x2=-Eg2/(2*k*T2);
+y2=(T2**(3/2))*exp(x2);
+ni=ni1*(y2/y1);          //number of electron hole pairs
+
+//Result
+printf('number of electron hole pairs is %0.3f    *10**16 per cubic metre    \n',(ni/10**16))
+printf('answer varies due to ing off errors')
+\ No newline at end of file