Added(A)/Deleted(D) following books

 A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/chapter1.ipynb
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/chapter2.ipynb
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/chapter3.ipynb
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/chapter4.ipynb
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/chapter5.ipynb
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/chapter6.ipynb
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/chapter7.ipynb
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/chapter8.ipynb
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/screenshots/DCLOADLINEchapter4.png
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/screenshots/DCLOADLineCH4.png
A  Basic_Electronics_by_Rakesh_Kumar_Garg,_Ashish_Dixit_&_Paban_Yadav/screenshots/TransferCharofnchmosfetCH8.png
A  Engineering_Mechanics_by_A._K._Tayal/Chapter10.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter12.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter13.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter14.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter15.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter16.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter17.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter18.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter19.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter2.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter20.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter21.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter22.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter23.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter24.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter25.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter26.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter3.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter4.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter5.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter6.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter7.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter8.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/Chapter9.ipynb
A  Engineering_Mechanics_by_A._K._Tayal/screenshots/1.png
A  Engineering_Mechanics_by_A._K._Tayal/screenshots/2.png
A  Engineering_Mechanics_by_A._K._Tayal/screenshots/3.png
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch10.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch11.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch12.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch14.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch16.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch2.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch3.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch4.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch5.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch6.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch7.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch8.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/ch9.ipynb
A  Semiconductor_circuit_approximations_by_A.P._Malvino/screenshots/ACloadLineChapter10.png
A  Semiconductor_circuit_approximations_by_A.P._Malvino/screenshots/DCandACloadlinechapter9.png
A  Semiconductor_circuit_approximations_by_A.P._Malvino/screenshots/Powerratingchapter9.png

1 files changed, 116 insertions, 0 deletions

diff --git a/Engineering_Mechanics_by_A._K._Tayal/Chapter13.ipynb b/Engineering_Mechanics_by_A._K._Tayal/Chapter13.ipynb
new file mode 100644
index 00000000..70272cbe
--- /dev/null
+++ b/Engineering_Mechanics_by_A._K._Tayal/Chapter13.ipynb
@@ -0,0 +1,116 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 13 Principle of Virtual Work"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Example 13.1 Application of Principle of Virtual Work"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The value of force (i.e P) that can hold the system in equilibrium is 500 N\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Initilization of variables\n",
+    "W=1000 # N # weight to be raised\n",
+    "# Calculations\n",
+    "# From the Principle of virtual work,\n",
+    "P=W/2 # N\n",
+    "# Results\n",
+    "print('The value of force (i.e P) that can hold the system in equilibrium is %d N'%P)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Example 13.7 Application of Principle of Virtual Work"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "The Horizontal component of reaction at A (X_A) is 333.333333 N\n",
+      "The Vertical component of reaction at A (Y_A) is 1333.333333 N\n",
+      "The Horizontal component of reaction at B (X_B) is 333.333333 N\n",
+      "The Vertical component of reaction at B (Y_B) is 666.666667 N\n"
+     ]
+    }
+   ],
+   "source": [
+    "import math\n",
+    "# Initilization of variables\n",
+    "P=1000 # N # Force acting at the hinge of the 1st square\n",
+    "Q=1000 # N # Force acting at the hinge of the 2nd square\n",
+    "# Calculations\n",
+    "# Chosing the co-ordinate system with originat A, we can write,\n",
+    "theta=45 # degree\n",
+    "# Forces that do work are P,Q & X_B. Applying the principle of virtual work & Simplyfying and solving for X_B,\n",
+    "X_B=((2*P)/6)*(math.cos(theta*math.pi/180)/math.sin(theta*math.pi/180)) # N \n",
+    "# Now give a virtual angular displacement to the whole frame about end A such that line AB turns by an angle delta_phi.\n",
+    "# The force doing work are P,Q&Y_B.Applying the principle of virtual work & Simplyfying this eq'n and solving for Y_B,\n",
+    "Y_B=((3*Q)+P)/6 # N\n",
+    "# Simply by removing the support at A & replacing it by the reactions X_A & Y_A we can obtain,\n",
+    "X_A=X_B # N\n",
+    "Y_A=P+Q-Y_B # N\n",
+    "# Results\n",
+    "print('The Horizontal component of reaction at A (X_A) is %f N'%X_A)\n",
+    "print('The Vertical component of reaction at A (Y_A) is %f N'%Y_A)\n",
+    "print('The Horizontal component of reaction at B (X_B) is %f N'%X_B)\n",
+    "print('The Vertical component of reaction at B (Y_B) is %f N'%Y_B)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.5.1"
+  },
+  "widgets": {
+   "state": {},
+   "version": "1.1.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}