1 files changed, 11 insertions, 0 deletions
diff --git a/2243/CH11/EX11.12/Ex11_12.sce b/2243/CH11/EX11.12/Ex11_12.sce
new file mode 100755
index 000000000..4f8f4afc6
--- /dev/null
+++ b/2243/CH11/EX11.12/Ex11_12.sce
@@ -0,0 +1,11 @@
+clc();
+clear;
+//Given :
+Eg = 1.1;// Energy gap in eV
+T1 = 300 ;// Temperature in K
+T2 = 473; // Temperature in K (273+ 200 = 473 K)
+k = 8.62*10^-5 ; // in eV
+// sigma = A*exp(-Eg/(2*k*T))
+//Ratio = sigma_473/sigma_300
+Ratio = exp((-Eg/(2*k))*((1/T2)-(1/T1)));
+printf("Thus, sigma_473 is  %d  times  sigma_300",Ratio);