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   "cells": [

    {

     "cell_type": "heading",

     "level": 1,

     "metadata": {},

     "source": [

      "Chapter 12:Analog and Digital Data Acquisition Systems"

     ]

    },

    {

     "cell_type": "heading",

     "level": 2,

     "metadata": {},

     "source": [

      "Ex12.1:pg-360"

     ]

    },

    {

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     "input": [

      "# To find percentage error\n",

      "# Modern Electronic Instrumentation And Measurement Techniques\n",

      "# By Albert D. Helfrick, William D. Cooper\n",

      "# First Edition Second Impression, 2009\n",

      "# Dorling Kindersly Pvt. Ltd. India\n",

      "# Example 12-1 in Page 360\n",

      "\n",

      "\n",

      "\n",

      "import math\n",

      "\n",

      "# Given data\n",

      "R = 1 #Resistance of the wire in ohm\n",

      "R_L = 10*10**3 #Load resistance in ohm\n",

      "I_supply = 50*10**-3 #power supply current in A\n",

      "V_out = 1 #output of the amplifier in V\n",

      "\n",

      "#Calculations\n",

      "V_L = (V_out+(I_supply*R))*R_L/(2*R+R_L)\n",

      "print \"The load voltage calculated = \",round(V_L,2)\n",

      "\n",

      "percenterror = math.ceil((V_L -V_out)/V_L*100)\n",

      "print \"The percentage error is about \",round(percenterror),\"%, which is unacceptable in most systems\"\n",

      "\n",

      "#Result\n",

      "# The load voltage calculated = 1.05\n",

      "# The percentage error is about 5 %, which is unacceptable in most systems \n",

      "\n",

      "\n",

      "\n"

     ],

     "language": "python",

     "metadata": {},

     "outputs": [

      {

       "output_type": "stream",

       "stream": "stdout",

       "text": [

        "The load voltage calculated =  1.05\n",

        "The percentage error is about  5.0 %, which is unacceptable in most systems\n"

       ]

      }

     ],

     "prompt_number": 1

    }

   ],

   "metadata": {}

  }

 ]

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