From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 1511/CH2/EX2.18/ex2_18.sce | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100755 1511/CH2/EX2.18/ex2_18.sce

(limited to '1511/CH2/EX2.18')

diff --git a/1511/CH2/EX2.18/ex2_18.sce b/1511/CH2/EX2.18/ex2_18.sce
new file mode 100755
index 000000000..c156835fe
--- /dev/null
+++ b/1511/CH2/EX2.18/ex2_18.sce
@@ -0,0 +1,21 @@
+// Example 2.18 page no-72
+clear
+clc
+
+//(a)
+sigma=100     //Ohm-cm
+e=1.6*10^-19 //c
+mup=1800     //cm^2/V-sec
+ni=2.5*10^13 // /cm^3
+printf("\n(a)\nAs it is p-type semiconductor, p>>n.")
+pp=sigma/(e*mup)
+n=ni^2/pp
+printf("\nPp=%.2f*10^17 holes/cm^3\nn=%.1f*10^9 electrons/cm^3",pp/10^17,n/10^9)
+
+//(b)
+mun=1300
+sig=0.1
+n1=1.5*10^10
+n2=sig/(mun*e)
+p1=(n1^2)/n2
+printf("\n\n(b)\nn=%.2f*10^14 elecrons/cm^3\np=%.2f*10^5 holes/cm^3",n2/10^14,p1/10^5)
-- 
cgit