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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 2642/CH2/EX2.7/Ex2_7.sce | 31 +++++++++++++++++++++++++++++++
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 create mode 100755 2642/CH2/EX2.7/Ex2_7.sce

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diff --git a/2642/CH2/EX2.7/Ex2_7.sce b/2642/CH2/EX2.7/Ex2_7.sce
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+// FUNDAMENTALS OF ELECTICAL MACHINES 
+// M.A.SALAM 
+// NAROSA PUBLISHING HOUSE 
+// SECOND EDITION
+
+// Chapter 2 : BESICS OF MAGNETIC CIRCUITS 
+// Example : 2.7
+clc;clear; // clears the console and command history 
+
+// Given data
+l = 0.1     // length in m
+w = 0.01    // width in m
+h =0.1      // height in m
+N = 450     // number of turns
+I = 0.2     // current in A
+myu_r = 850 // relative permiability magnetic material
+
+// caclulations 
+MMF = N*I                       // magnetomotive force in At
+l_c = (h-w)*4                   //  mean length of the path in m
+A = w*w                         // cross sectional area in m^2
+R_m = l_c/(4*%pi*10^-7*myu_r*A) // relectance in At/Wb
+flux = MMF/R_m                  // flux in Wb
+B = flux/A                      // magnetic flux density in Wb/m^2
+H = B/(4*%pi*10^-7*myu_r)       // field intensity in At/m
+
+// display the result 
+disp("Example 2.7 solution");
+printf(" \n Flux \n flux= %.2e Wb \n", flux);
+printf(" \n Magnetic flux density \n B= %.4f Wb/m^2 \n", B);
+printf(" \n Field intensity \n H= %.2f At/m \n", H);
-- 
cgit