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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 1 , Introductory Concepts"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 1.4 , Page Number 23"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Equivalent voltage source is  100.0  V.\n"
+     ]
+    }
+   ],
+   "source": [
+    "#Variables\n",
+    "\n",
+    "IS = 4.0              #Current (in Ampere)\n",
+    "Rin = 25.0            #Resistance (in ohm)\n",
+    "\n",
+    "#Calculation\n",
+    "\n",
+    "Voc = IS * Rin        #Voltage (in volts) \n",
+    "\n",
+    "#Result\n",
+    "\n",
+    "print \"Equivalent voltage source is \",Voc,\" V.\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 1.5 , Page Number 23"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Current in 28 ohm resistor is  2.0  A.\n"
+     ]
+    }
+   ],
+   "source": [
+    "#Variables\n",
+    "\n",
+    "R1 = 4.0             #Resistance (in ohm)\n",
+    "R2 = 8.0             #Resistance (in ohm)\n",
+    "RS = 28.0            #Resistance (in ohm)\n",
+    "V1 = 40.0            #Voltage (in volts)\n",
+    "V2 = 40.0            #Voltage (in volts)\n",
+    "\n",
+    "#Calculation\n",
+    "\n",
+    "Rnet = R1 + R2 + RS  #Net resistance (in ohm)\n",
+    "Vnet = V1 + V2       #Net voltage (in volts) \n",
+    "I = Vnet / Rnet      #Current (in Ampere)\n",
+    "\n",
+    "#Result\n",
+    "\n",
+    "print \"Current in 28 ohm resistor is \",I,\" A.\""
+   ]
+  }
+ ],
+ "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
+}