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

---
 854/CH7/EX7.2/Example7_2.sce | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100755 854/CH7/EX7.2/Example7_2.sce

(limited to '854/CH7/EX7.2/Example7_2.sce')

diff --git a/854/CH7/EX7.2/Example7_2.sce b/854/CH7/EX7.2/Example7_2.sce
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+++ b/854/CH7/EX7.2/Example7_2.sce
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+//clear//
+//Caption: Capacitance of a Cylindrical Capacitor
+//Example7.2
+//page 179
+clc;
+A = sym('A');
+B = sym('B');
+r = sym('r');
+ar = sym('ar');
+ruo = sym('ruo');
+a = sym('a');
+b = sym('b');
+L = sym('L');
+Vo = sym('Vo');
+V = integ(A/r,r)+B;
+disp(V,'Potential V = ')
+V = limit(V,A,Vo/log(a/b));
+V = limit(V,B,-Vo*log(b)/log(a/b));
+disp(V,'Potential V by substitute the values of constant A & B = ')
+V = Vo*log(b/r)/log(b/a);
+E = -diff(V,r)*ar;
+disp(E,'E = ');
+E = limit(E,r,a);
+disp(E,'E at r =a is =')
+D = e*E;
+DN = D/ar;
+disp(DN,'DN =')
+S = float(2*%pi*a*L); //area of cylinder
+Q = DN*S
+disp(Q,'Q =')
+C = Q/Vo;
+disp(C,'Capacitance of a cylindrical Capacitor C =')
+//Result
+// Potential V =  B+log(r)*A   
+// Potential V by substitute the values of constant A & B =(log(r)-log(b))*Vo/log(a/b)   
+// E = ar*Vo/(log(b/a)*r)   
+// E at r =a is =  ar*Vo/(a*log(b/a))   
+// DN = e*Vo/(a*log(b/a))   
+// Q = 6.283185306023805*e*Vo*L/log(b/a)   
+// Capacitance of a cylindrical Capacitor C = 6.283185306023805*e*L/log(b/a)  
-- 
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