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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#Chapter 5:Digital Instruments"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 5.1,Page No:338"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "frequency of the of the system = 4500.00 Hz\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "\n",
+    "#variable declaration\n",
+    "N   = 45;      #reading \n",
+    "t   = 10*10**-3;      #Gated period in ms\n",
+    "\n",
+    "#calculations\n",
+    "f  = N/float(t);\n",
+    "\n",
+    "#result\n",
+    "print'frequency of the of the system = %3.2f'%f,'Hz';"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 5.2,Page No:339"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Resolution 0.0010\n",
+      "Resolution for full scale range of 10V = 0.01 V\n",
+      "possible error  = 0.015 V\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "\n",
+    "#variable declaration\n",
+    "n     = 3;      #number of full digits on 3 1/2 digit display \n",
+    "fs    = 1;      #voltage in V\n",
+    "fs1   = 10;     #voltage in V\n",
+    "r     = 2;      #voltage reading in V\n",
+    "fs3   = 5;\n",
+    "\n",
+    "#calculation\n",
+    "R    = 1/float((10)**n);        #resolution\n",
+    "R1   = R*fs;                    #resolution for full scale range of 1V\n",
+    "R2   = fs1*R;                    #resolution for full scale range of 10V\n",
+    "LSD   =fs3*R;                         #digit in the least siginificant digit in V\n",
+    "e    = (((0.5)/float(100))*(r))+LSD;     #total possible error in V\n",
+    "\n",
+    "#result\n",
+    "print'Resolution %3.4f'%R;\n",
+    "print'Resolution for full scale range of 10V = %3.2f'%R2,'V';\n",
+    "print'possible error  = %3.3f'%e,'V';\n",
+    "\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "##Example 5.3,Page No:340"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Resolution = 0.0001 \n",
+      "There are 5 digit faces in 4 1/2 digt display ,so 16.95 would be displayed as 16.950\n",
+      "Resolution = 0.0001 \n",
+      "Hence 0.6564 will be displayed as 0.6564\n",
+      "Resolution = 0.0010 \n",
+      "Hence 0.6564 will be displayed as 0.656\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "\n",
+    "#variable declaration\n",
+    "n   = 4;     #numberof full digits \n",
+    "fs  = 1;     #full scale range of 1V\n",
+    "fs  = 1;     #full scale range of 10V\n",
+    "\n",
+    "\n",
+    "#calculation\n",
+    "R    = 1/float((10)**n);    #resolution\n",
+    "R1    = fs*R;      #resolution on 1V in V\n",
+    "R2    = fs1*R;      #resolution on 10V in V\n",
+    "\n",
+    "\n",
+    "#result\n",
+    "print'Resolution = %3.4f '%R;\n",
+    "print'There are 5 digit faces in 4 1/2 digt display ,so 16.95 would be displayed as 16.950';\n",
+    "print'Resolution = %3.4f '%R1;\n",
+    "print'Hence 0.6564 will be displayed as 0.6564';\n",
+    "print'Resolution = %3.4f '%R2;\n",
+    "print'Hence 0.6564 will be displayed as 0.656';\n"
+   ]
+  }
+ ],
+ "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": "2.7.6"
+  }
+ },
+ "nbformat": 4,
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+}