{
 "metadata": {
  "name": ""
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "heading",
     "level": 1,
     "metadata": {},
     "source": [
      "Chapter 1: Introduction"
     ]
    },
    {
     "cell_type": "heading",
     "level": 3,
     "metadata": {},
     "source": [
      "Example 1.1, Page Number: 6"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "from __future__ import division\n",
      "\n",
      "\n",
      "#Variable declaration:\n",
      "Pi = 4200                            #input power(W)\n",
      "E = 120                              #voltage supply of generator(V)\n",
      "I = 32.2                             #supply current(A)\n",
      "\n",
      "\n",
      "#Calculation:\n",
      "Po = E*I                          #output power(W)\n",
      "n = Po/Pi*100                         #efficiency(%)\n",
      "Pl = Pi-Po                         #power lost(W)\n",
      "El = Pl*60                         #energy lost per minute(J)\n",
      "\n",
      "\n",
      "#Result:\n",
      "print \"The percentage efficiency of the generator is\",n,\"%\"\n",
      "print \"Energy lost per minute of operation is\",El,\"J\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "The percentage efficiency of the generator is 92.0 %\n",
        "Energy lost per minute of operation is 20160.0 J\n"
       ]
      }
     ],
     "prompt_number": 2
    }
   ],
   "metadata": {}
  }
 ]
}