Added(A)/Deleted(D) following books

 A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter25_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter26_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter27_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter28_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter29_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter30_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter31_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter32_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter33_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter34_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter35_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter36_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter37_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter38_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter39_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/screenshots/chapter29example32_2.png
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/screenshots/chapter29example33_2.png
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/screenshots/chapter32example30_2.png
A  Advance_Semiconductor_Devices_by_K._C._Nandi/chapter1_1.ipynb
A  Advance_Semiconductor_Devices_by_K._C._Nandi/chapter2_1.ipynb
A  Advance_Semiconductor_Devices_by_K._C._Nandi/chapter5_1.ipynb
A  Advance_Semiconductor_Devices_by_K._C._Nandi/screenshots/KC_econ1_chapter1_1.png
A  Advance_Semiconductor_Devices_by_K._C._Nandi/screenshots/KC_econ_ch1_1.png
A  Advance_Semiconductor_Devices_by_K._C._Nandi/screenshots/KC_percentChangeinDiodeCurrent_chapter2_1.png
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch15_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch15_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch15_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch16_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch16_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch16_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch17_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch17_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch17_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch18_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch18_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch18_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch19_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch19_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch19_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch20_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch20_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch20_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch21_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch21_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch21_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch22_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch22_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch22_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch23_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch23_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch23_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch24_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch24_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch24_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch25_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch25_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch25_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch26_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch26_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch26_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch27_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch27_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch27_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch28_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch28_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch28_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch29_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch29_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch29_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch30_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch30_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch30_3.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch10_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch11_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch12_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch13_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch1_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch2_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch3_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch4_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch5_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch6_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch7_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch8_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch9_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4CollCurr_1.png
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4MaxNBasRes_1.png
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4saturationMode_1.png
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter1_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter2_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter3_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter4_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter6_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter7_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter8_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch11_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch12_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch13_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch14_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch3_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch4_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch5_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch6_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch7_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch8_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch9_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/screenshots/BiasingVoltage_1.png
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/screenshots/InOutCrrnt_1.png
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/screenshots/inAndOutCurrnt_1.png

1 files changed, 326 insertions, 0 deletions

diff --git a/Electronic_Devices_and_Circuits_by_J._Paul/Ch7_1.ipynb b/Electronic_Devices_and_Circuits_by_J._Paul/Ch7_1.ipynb
new file mode 100644
index 00000000..51287177
--- /dev/null
+++ b/Electronic_Devices_and_Circuits_by_J._Paul/Ch7_1.ipynb
@@ -0,0 +1,326 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 7 - Field Effect Transistor"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 370 example 1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "vgs   =   0.70 volt\n",
+      "id   =   1.51e-03 ampere\n",
+      "vds   =   11.23 volt\n",
+      "voltage gain   =   -21.25\n"
+     ]
+    }
+   ],
+   "source": [
+    "from sympy import symbols, solve\n",
+    "rd=12*10**3##ohm\n",
+    "r=1*10**6##ohm\n",
+    "resour=470##ohm\n",
+    "vdd=30##volt\n",
+    "idss=3*10**-3##ampere\n",
+    "vd=2.4##volt\n",
+    "v = symbols('v')\n",
+    "vgs=[0.24, 2.175, 1.41]\n",
+    "expr = vgs[0]*v**2+vgs[1]*v+vgs[2]\n",
+    "vgs=-solve(expr,v)[1]\n",
+    "vgs=0.7\n",
+    "id=idss*((1-(vgs/vd)))**2\n",
+    "vds=vdd-id*(rd+resour)\n",
+    "g=(2*idss/vd)*(1-((vgs/vd)))\n",
+    "volgai=-g*rd\n",
+    "print \"vgs   =   %0.2f\"%((vgs)),\"volt\"\n",
+    "print \"id   =   %0.2e\"%((id)),\"ampere\"\n",
+    "print \"vds   =   %0.2f\"%((vds)),\"volt\"\n",
+    "print \"voltage gain   =   %0.2f\"%((volgai))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 371 example 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "r1   =   2000.00 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "from __future__ import division\n",
+    "idss=1*10**-3##ampere\n",
+    "pinvol=1##volt\n",
+    "q=10##volt\n",
+    "rd=56*10**3##ohm\n",
+    "vdd=24##volt\n",
+    "dracur=(vdd-q)/rd\n",
+    "vgs=0.5\n",
+    "r1=vgs/dracur\n",
+    "print \"r1   =   %0.2f\"%((r1)),\"ohm\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 372 example 4"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "id   =   2.25e-03 ampere\n",
+      "vds   =   10.50 volt\n"
+     ]
+    }
+   ],
+   "source": [
+    "ids=4*10**-3##ampere\n",
+    "vp=4##volt\n",
+    "r=1.3*10**3#ohm\n",
+    "r1=200*10**3##ohm\n",
+    "vdd=60##volt\n",
+    "drares=18*10**3##ohm\n",
+    "soresi=4*10**3##ohm\n",
+    "rth=(r*r1)/(r+r1)\n",
+    "vth=r1*(1-vdd)/(1500*10**3)\n",
+    "id=-2.25*10**-3\n",
+    "vds=-vdd-(drares+soresi)*id\n",
+    "print \"id   =   %0.2e\"%(abs(id)),\"ampere\"\n",
+    "print \"vds   =   %0.2f\"%(abs(vds)),\"volt\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 373 example 5"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "source resistance   =   156.25 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt\n",
+    "idss=10*10**-3##ampere\n",
+    "pinvol=-1##volt\n",
+    "ids=6.4*10**-3##ampere\n",
+    "vgs=-(sqrt(ids/idss)-(1))*pinvol\n",
+    "r=pinvol/ids\n",
+    "print \"source resistance   =   %0.2f\"%(abs(r)),\"ohm\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 374 example 6"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "duration   =   1.39e-07 second\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import log\n",
+    "v1=2##volt\n",
+    "vgs=4##volt\n",
+    "voltag=5##volt\n",
+    "q=5*10**-3##ampere per volt square\n",
+    "id=q*(vgs-v1)\n",
+    "durati=10**-7*log(4)\n",
+    "\n",
+    "print \"duration   =   %0.2e\"%((durati)),\"second\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 7 example 7"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "max transconductance   =   4.00e-04 mho\n"
+     ]
+    }
+   ],
+   "source": [
+    "idss=1*10**-3##ampere\n",
+    "pinvol=-5##volt\n",
+    "tracon=(2*idss)/abs(pinvol)\n",
+    "print \"max transconductance   =   %0.2e\"%((tracon)),\"mho\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 376 example 8"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "vgs   =   3.24 volt\n",
+      "rd   =   13527.86 ohm\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt\n",
+    "vdd=10##volt\n",
+    "beta1=10**-4##ampere per square volt\n",
+    "ids=0.5*10**-3##ampere\n",
+    "voltag=1##volt\n",
+    "vgs=(sqrt(ids/beta1)+(1))\n",
+    "rd=(vdd-vgs)/ids\n",
+    "\n",
+    "print \"vgs   =   %0.2f\"%((vgs)),\"volt\"\n",
+    "print \"rd   =   %0.2f\"%((rd)),\"ohm\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 376 example 9"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "point 10.75 >2.00 volt\n",
+      "vds greater than 2volt the point in pinch\n"
+     ]
+    }
+   ],
+   "source": [
+    "v1=2##volt\n",
+    "ids=4*10**-3##ampere\n",
+    "\n",
+    "rd=910##ohm\n",
+    "r1=3*10**3##ohm\n",
+    "r=12*1**6##ohm\n",
+    "r11=8.57*10**6##ohm\n",
+    "vdd=24##volt\n",
+    "vg=vdd*(r11/(r+(r11)))\n",
+    "id=3.39*10**-3\n",
+    "vgsq=vg-id*r1\n",
+    "vdsq=vdd-id*(rd+r1)\n",
+    "vdgq=vdsq-vgsq\n",
+    "print \"point %0.2f\"%(vdsq),\">%0.2f\"%(v1),\"volt\"\n",
+    "print \"vds greater than 2volt the point in pinch\""
+   ]
+  }
+ ],
+ "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
+}