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   "source": [
    "#Chapter 1:General Introduction"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "##Example number 1.1, Page number 1.21"
   ]
  },
  {
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   "execution_count": 18,
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     "output_type": "stream",
     "text": [
      "ionization current is 2.000000 *10**-11 amp \n"
     ]
    }
   ],
   "source": [
    "#importing modules\n",
    "import math\n",
    "from __future__ import division\n",
    "\n",
    "#Variable declaration\n",
    "C =20/(9*10^11)        #converting cms to farads\n",
   

    "\n",
    "#Calculation\n",
    "F=154-100				#fall in potential\n",
    "R=F/60					#rate of fall in potential\n",
	"I=C*R					#ionization current\n",
    "\n",
    "#Result\n",
    "print\"ionization current is \",(I),\"amp\""
   ]
  },
  
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