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

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 2912/CH7/EX7.7/Ex7_7.sce | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 2912/CH7/EX7.7/Ex7_7.sce

(limited to '2912/CH7/EX7.7')

diff --git a/2912/CH7/EX7.7/Ex7_7.sce b/2912/CH7/EX7.7/Ex7_7.sce
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+//chapter 7
+//example 7.7
+//Calculate the dielectric constant of the material
+//page 190
+clear;
+clc;
+//given
+N=3E28; // in atoms/m^3 (density of atoms)
+alpha_e=1E-40; // in F-m^2 (electronic polarisability)
+Eo=8.85E-12; // in F/m (absolute permittivity)
+//calculate
+// Since (Er-1)/(Er+2)=N*alpha_e/(3*Eo)
+// therefore we have
+Er=(2*(N*alpha_e/(3*Eo))+1)/(1-(N*alpha_e/(3*Eo)));
+ // calculation of dielectric constant of the material
+printf('\nThe dielectric constant of the material is \tEr=%.3f F/m',Er);
+// NOTE: The answer in the book is wrong due to calculation mistake
-- 
cgit