From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 3557/CH17/EX17.2/Ex17_2.sce | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 3557/CH17/EX17.2/Ex17_2.sce

(limited to '3557/CH17/EX17.2/Ex17_2.sce')

diff --git a/3557/CH17/EX17.2/Ex17_2.sce b/3557/CH17/EX17.2/Ex17_2.sce
new file mode 100644
index 000000000..4080d3008
--- /dev/null
+++ b/3557/CH17/EX17.2/Ex17_2.sce
@@ -0,0 +1,17 @@
+//Example 17.2//
+
+n=23*10^18; //m^-3  //density of conduction electron
+q=0.16*10^-18;//C //one elementary charge
+ue=0.364;//m^2/(V.s) //electron mobility of germanium
+uh=0.190;//m^2/(V.s)//hole mobility of germanium
+si=n*q*(ue+uh)
+mprintf("si = %f ohm^-1 m^-1",si)
+Eg=0.66;//eV //band gap
+k=(86.2*10^-6);//eV/K //Boltzmann constant
+T=300;//K //absolute temperature
+s0=si*%e^(Eg/(2*k*T))
+mprintf("\ns0 = %e ohm^-1 m^-1",s0)
+//Then
+T1=473;//K //absolute temperature
+s2=s0*%e^-(Eg/(2*k*T1))
+mprintf("\ns2 = %i ohm^-1 m^-1",s2)
-- 
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