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 "worksheets": [

  {

   "cells": [

    {

     "cell_type": "heading",

     "level": 1,

     "metadata": {},

     "source": [

      "Chapter9:DIELECTRIC PROPERTIESOF MATERIALS"

     ]

    },

    {

     "cell_type": "heading",

     "level": 2,

     "metadata": {},

     "source": [

      "Ex9.1:pg-269"

     ]

    },

    {

     "cell_type": "code",

     "collapsed": false,

     "input": [

      "import math\n",

      "#to calculate dielectric constant of the liquid\n",

      "#capacitance of the air filled dielectric Cair=Q/Vo-----------eq(1)\n",

      "#when dielectric is filled between the plates ,Cliquid=Q/V\n",

      "#then Cliquid=epsilonr*Q/Vo------eq(2)\n",

      "Vo=60\n",

      "                  #voltage in volts\n",

      "V=30\n",

      "#from eq(1) and eq(2),we get\n",

      "epsilon0=Vo/V\n",

      "print \"the dielectric constant of the liquid is epsilon0=\",epsilon0,\"unitless\"\n"

     ],

     "language": "python",

     "metadata": {},

     "outputs": [

      {

       "output_type": "stream",

       "stream": "stdout",

       "text": [

        "the dielectric constant of the liquid is epsilon0= 2 unitless\n"

       ]

      }

     ],

     "prompt_number": 1

    },

    {

     "cell_type": "heading",

     "level": 2,

     "metadata": {},

     "source": [

      "Ex9.2:pg-269"

     ]

    },

    {

     "cell_type": "code",

     "collapsed": false,

     "input": [

      "import math\n",

      "#to calculate charge on the capacitance\n",

      "epsilon0=8.854*10**-12 #permittivity\n",

      "epsilonr=6 #relative permittivity\n",

      "V=100 #voltage in volts\n",

      "d=1.5*10**-3 #distance in m\n",

      "A=4*10**-4#area in m**2\n",

      "Q=epsilon0*epsilonr*A*V/d\n",

      "print \"the charge on the capacitance is Q=\",\"{:.2e}\".format(Q),\"Coulomb\"\n"

     ],

     "language": "python",

     "metadata": {},

     "outputs": [

      {

       "output_type": "stream",

       "stream": "stdout",

       "text": [

        "the charge on the capacitance is Q= 1.42e-09 Coulomb\n"

       ]

      }

     ],

     "prompt_number": 1

    },

    {

     "cell_type": "heading",

     "level": 2,

     "metadata": {},

     "source": [

      "Ex9.3:pg-269"

     ]

    },

    {

     "cell_type": "code",

     "collapsed": false,

     "input": [

      "import math\n",

      "#to calculate voltage\n",

      "A=6.50*10**-4 #area in m**2\n",

      "Q=2*10**-10 #charge in C\n",

      "d=4*10**-3 #plate separation in m\n",

      "epsilon0=8.854*10**-12\n",

      "epsilonr=3.5 #dielectric constant\n",

      "V=Q*d/(epsilon0*epsilonr*A)\n",

      "print \"the resultant voltage across the capacitor is V=\",round(V,1),\"volt\"\n"

     ],

     "language": "python",

     "metadata": {},

     "outputs": [

      {

       "output_type": "stream",

       "stream": "stdout",

       "text": [

        "the resultant voltage across the capacitor is V= 39.7 volt\n"

       ]

      }

     ],

     "prompt_number": 2

    }

   ],

   "metadata": {}

  }

 ]

}