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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 1,Page number 6"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The current in circuit is  0.3672\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import pi\n",
+    "import math   \n",
+    "# given\n",
+    "Bc=0.8\n",
+    "Hc=510\n",
+    "Bg=0.8\n",
+    "A=12.566 \n",
+    "lg=0.0015\n",
+    "lc=0.36\n",
+    "N=500\n",
+    "# calculations\n",
+    "Fg=Bg/A*(2*lg)\n",
+    "Fc=Hc*lc\n",
+    "F=Fc+Fg\n",
+    "i=F/N\n",
+    "Pre=Bc/Hc\n",
+    "RelPre=Pre/A\n",
+    "F=Hc*lc\n",
+    "i=F /N #current\n",
+    "print 'The current in circuit is ',i\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 2,Page number 7"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The flux density is 5\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import pi\n",
+    "A=12.566 \n",
+    "lc=360\n",
+    "N=500\n",
+    "i=4\n",
+    "lg=2*10**-3\n",
+    "m=-A*(lc/lg)\n",
+    "c=(N*i*A)/(lg)\n",
+    "Hc=(N*i)/(lc)  #flux density\n",
+    "print 'The flux density is',Hc"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 3,Page number 7"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The airgap flux value is -7.47688567997e-07\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "#given\n",
+    "N1=500\n",
+    "I1=10\n",
+    "N2=500\n",
+    "I2=10\n",
+    "Ibafe=3*52*10**-2\n",
+    "A=12.566\n",
+    "b=1200\n",
+    "Ag=4*10^-4\n",
+    "Ac=4*10^-4\n",
+    "lg=5*10^-3\n",
+    "Ibecore=0.515\n",
+    "c=0.0002067\n",
+    "d=0.0004134\n",
+    "#calculations\n",
+    "F1=N1*I1\n",
+    "F2=N2*I2\n",
+    "Pre=1200*A\n",
+    "Rbafe=(Ibafe)/(Pre*Ac)\n",
+    "Rg=lg/(A*Ag)\n",
+    "Rbecore=Ibecore/(Pre*Ac)\n",
+    "Bg=d/(Ag)\n",
+    "Hg=Bg/A    # airgap ﬂux\n",
+    "print 'The airgap flux value is',Hg\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 4,Page number 8"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The magnetic flux is 0.153938040026\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import pi\n",
+    "# given \n",
+    "Irad=20\n",
+    "Orad=25\n",
+    "Dia=22.5\n",
+    "N=250\n",
+    "i=2.5\n",
+    "B=1.225\n",
+    "# calculations\n",
+    "l=2*pi*Dia*10**-2\n",
+    "radius=1/2*(Irad+Orad)\n",
+    "H=(N*i)/l\n",
+    "A=pi*((Orad -Irad)/2)**2*10**-4\n",
+    "z=(1.225)*(pi*6.25*10**-4)\n",
+    "y=(N*z)\n",
+    "L=(y/i)\n",
+    "core=(B/H)\n",
+    "l=(2*pi*22.5*10**-2)\n",
+    "Rcore=(l)/(core*A)\n",
+    "L=(N**2)/(Rcore)\n",
+    "print 'The magnetic flux is',L"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "collapsed": true
+   },
+   "source": [
+    "## Example 5,Page number 8"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "flux density 144.0\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "# given\n",
+    "n=500\n",
+    "E=100\n",
+    "A=0.001\n",
+    "b=1/120\n",
+    "f=1.2\n",
+    "#calculations\n",
+    "max1=(E/1000)*(b)\n",
+    "max2=(f*A)\n",
+    "E=(120*n*max2*2) # result\n",
+    "print 'flux density',E\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "collapsed": true
+   },
+   "source": [
+    "## Example 6,Page number 9"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The dimension Am is 0.000210526315789\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import pi\n",
+    "#given\n",
+    "lg=0.4*10**-2\n",
+    "Bg=0.8\n",
+    "Hm=42*10**3\n",
+    "A=4*pi*10**-7\n",
+    "Ag=2.5*10**-4\n",
+    "Bm=0.95\n",
+    "#calculations\n",
+    "Hg=Bg/A\n",
+    "lm=(lg/Hm)*Hg\n",
+    "Am=(Bg*Ag)/(Bm)\n",
+    "print 'The dimension Am is',Am\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 2",
+   "language": "python",
+   "name": "python2"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.10"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}