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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 11 More Amplifier Theory"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 11.1 Page No 274"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The closed loop voltage gain = 47.81\n"
+     ]
+    }
+   ],
+   "source": [
+    "# given data\n",
+    "r_F= 220##  Ω\n",
+    "r_E= 4.7##in Ω\n",
+    "# The closed loop voltage gain \n",
+    "A_CL= r_F/r_E+1#\n",
+    "print \"The closed loop voltage gain = %.2f\"%A_CL"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 11.2 Page No 287"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The value of alpha = 0.99\n",
+      "The value of r''e = 29.17 Ω\n",
+      "The value of r''c = 14.12 MΩ\n"
+     ]
+    }
+   ],
+   "source": [
+    "# given data\n",
+    "h_ie= 3.5*10**3##in Ω\n",
+    "h_fe= 120.0#\n",
+    "h_re= 1.3*10**-4#\n",
+    "h_oe= 8.5*10**-6##  S\n",
+    "bita= h_fe## unit less\n",
+    "# The value of alpha \n",
+    "alpha= h_fe/(h_fe+1)#\n",
+    "print \"The value of alpha = %.2f\"%alpha\n",
+    "# The value of r'e\n",
+    "r_desh_e= h_ie/h_fe##  Ω\n",
+    "r_desh_c= h_fe/h_oe##  Ω\n",
+    "print \"The value of r''e = %.2f Ω\"%r_desh_e\n",
+    "# The value of r'c\n",
+    "r_desh_c= r_desh_c*10**-6##  Mohm\n",
+    "print \"The value of r''c = %.2f MΩ\"%r_desh_c"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 11.3 Page No 288"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The value of r''b = 175.00 Ω\n"
+     ]
+    }
+   ],
+   "source": [
+    "# given data\n",
+    "h_rb= 1.75*10**-4#\n",
+    "h_ob= 10**-6##  S\n",
+    "r_desh_b= h_rb/h_ob##  Ω\n",
+    "print \"The value of r''b = %.2f Ω\"%r_desh_b"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Example 11.4 Page No 289"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The voltage gain = 68.02\n"
+     ]
+    }
+   ],
+   "source": [
+    "# given data\n",
+    "h_fe= 120## unit less\n",
+    "h_ie= 3.5*10**3##in Ω\n",
+    "r_L= 2*10**3##  Ω\n",
+    "h_oe= 8.5*10**-6##  S\n",
+    "h_re= 1.3*10**-4## unit less\n",
+    "# The voltage gain \n",
+    "A= h_fe*r_L/(h_ie*(1+h_oe*r_L)-h_re*h_fe*r_L)\n",
+    "print \"The voltage gain = %.2f\"%A"
+   ]
+  }
+ ],
+ "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
+}