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

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 3655/CH3/EX3.4/Ex3_4.sce | 24 ++++++++++++++++++++++++
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 create mode 100644 3655/CH3/EX3.4/Ex3_4.sce

(limited to '3655/CH3/EX3.4/Ex3_4.sce')

diff --git a/3655/CH3/EX3.4/Ex3_4.sce b/3655/CH3/EX3.4/Ex3_4.sce
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+// Example 3.4
+// Computation for percentage of electrons leaving a tungstan filament which can surmount a barrier of height 1eV//
+// Page no.78
+
+clc;
+clear;
+close;
+
+//Given data ;
+Vr=1;
+VT=2700/11600;//VT=T/11600
+
+
+//Calculation for percentage of electrons leaving a tungstan filament at 2700 degree K//
+P1=(exp(-Vr/VT))*100;//P1=I/Ith
+
+//Hence only about 1.4% of the electrons have surface-directed energies in excess of 1eV//
+
+
+//Displaying the result in command window
+printf('\n Percentage of electrons leaving a tungstan filament which can surmount a barrier of height 1eV = %0.1f percent',P1);
+
+
+//Answers are varying due to round off error//
-- 
cgit