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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 11:BAsic Analogue Instruments"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 11.1:Page number-617"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "rsh= 0.00450 ohm\n",
+      "rsh= 0.00300 ohm\n",
+      "rsh= 0.00225 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "\n",
+    "#given and derived\n",
+    "\n",
+    "rm=75\n",
+    "im=300*(10**-6)\n",
+    "\n",
+    "#case a\n",
+    "\n",
+    "i=5\n",
+    "rsh=(rm*im)/float(i-im)\n",
+    "\n",
+    "print \"rsh=\",format(rsh,'.5f'),\"ohm\"\n",
+    "\n",
+    "#case b\n",
+    "\n",
+    "i=7.5\n",
+    "\n",
+    "rsh=(rm*im)/float(i-im)\n",
+    "\n",
+    "print \"rsh=\",format(rsh,'.5f'),\"ohm\"\n",
+    "\n",
+    "#case c\n",
+    "\n",
+    "i=10\n",
+    "\n",
+    "rsh=(rm*im)/float(i-im)\n",
+    "\n",
+    "print \"rsh=\",format(rsh,'.5f'),\"ohm\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 11.2:Page number-619"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "rse= 166591.67 ohm\n",
+      "rse= 249925.00 ohm\n",
+      "rse= 333258.33 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "\n",
+    "im=300*(10**-6)\n",
+    "\n",
+    "rm=75\n",
+    "\n",
+    "#case a\n",
+    "\n",
+    "v=50\n",
+    "rse=(v/im)-rm\n",
+    "\n",
+    "print \"rse=\",format(rse,'.2f'),\"ohm\"\n",
+    "\n",
+    "#case b\n",
+    "\n",
+    "v=75\n",
+    "\n",
+    "rse=(v/im)-rm\n",
+    "\n",
+    "print \"rse=\",format(rse,'.2f'),\"ohm\"\n",
+    "\n",
+    "#case c\n",
+    "\n",
+    "v=100\n",
+    "\n",
+    "rse=(v/im)-rm\n",
+    "\n",
+    "print \"rse=\",format(rse,'.2f'),\"ohm\"\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "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": "2.7.9"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}