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diff --git a/Physics_for_BSc(Paper-3)/Chapter1.ipynb b/Physics_for_BSc(Paper-3)/Chapter1.ipynb new file mode 100755 index 00000000..6dc29562 --- /dev/null +++ b/Physics_for_BSc(Paper-3)/Chapter1.ipynb @@ -0,0 +1,201 @@ +{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:ba3f78351f4be2023ce816790e91ae988fafb883f552e13733bb7da3271b13e0"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "1: Electrostatics-Basic concepts"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example number 1.1, Page number 12"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "r=0.053*10**-9; #distance(m)\n",
+ "q1=1.6*10**-19; #charge on electron(C)\n",
+ "q2=1.6*10**-19; #charge on proton(C)\n",
+ "#let x=1/(4*math.pi*epsilon0)\n",
+ "x=9*10**9;\n",
+ "\n",
+ "#Calculation\n",
+ "F=x*q1*q2/(r**2); #force of attraction(N)\n",
+ "\n",
+ "#Result\n",
+ "print \"force of attraction is\",round(F*10**8,1),\"*10**-8 N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "force of attraction is 8.2 *10**-8 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 3
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example number 1.2, Page number 13"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "r=2; #distance(m)\n",
+ "q1plusq2=5*10**-4; #positive charge(C)\n",
+ "#let x=1/(4*math.pi*epsilon0)\n",
+ "x=9*10**9;\n",
+ "F=1; #force(N)\n",
+ "\n",
+ "#Calculation\n",
+ "q1q2=F*(r**2)/x; #product of charges(C**2)\n",
+ "q1minusq2=math.sqrt((q1plusq2**2)-(4*q1q2)); ##difference of charges(C)\n",
+ "twoq1=q1plusq2+q1minusq2;\n",
+ "q1=twoq1/2; #charge on individual sphere(C)\n",
+ "twoq2=q1plusq2-q1minusq2;\n",
+ "q2=twoq2/2; #charge on individual sphere(C)\n",
+ "\n",
+ "#Result\n",
+ "print \"the charges on individual spheres are\",round(q1*10**4,3),\"*10**-4 and\",round(q2*10**4,3),\"*10**-4\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "the charges on individual spheres are 4.991 *10**-4 and 0.009 *10**-4\n"
+ ]
+ }
+ ],
+ "prompt_number": 11
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example number 1.3, Page number 13"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "m=9.1*10**-31; #mass of electron(kg)\n",
+ "g=9.8; #acceleration due to gravity(m/sec**2)\n",
+ "q=1.6*10**-19; #charge on electron(C)\n",
+ "\n",
+ "#Calculation\n",
+ "F1=m*g; #force by electron(N)\n",
+ "E=F1/(2*q); #intensity of electric field(N/C)\n",
+ "\n",
+ "#Result\n",
+ "print \"intensity of electric field is\",round(E*10**11,3),\"*10**-11 N/C\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "intensity of electric field is 2.787 *10**-11 N/C\n"
+ ]
+ }
+ ],
+ "prompt_number": 10
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example number 1.4, Page number 14"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#importing modules\n",
+ "import math\n",
+ "from __future__ import division\n",
+ "\n",
+ "#Variable declaration\n",
+ "r=12*10**-2; #distance(m)\n",
+ "q1=2*10**-7; #charge(C)\n",
+ "q2=8.5*10**-8; #charge(C)\n",
+ "#let x=1/(4*math.pi*epsilon0)\n",
+ "x=9*10**9;\n",
+ "\n",
+ "#Calculation\n",
+ "E1=x*q2/(r**2); #intensity at electric field at q1 due to q2(N/C)\n",
+ "E2=x*q1/(r**2); #intensity at electric field at q2 due to q1(N/C)\n",
+ "F=x*q1*q2/(r**2); #force of attraction(N)\n",
+ "\n",
+ "#Result\n",
+ "print \"intensity at electric field at q1 due to q2 is\",round(E1*10**-5,2),\"*10**5 N/C\"\n",
+ "print \"intensity at electric field at q1 due to q2 is\",round(E2*10**-5,2),\"*10**5 N/C\"\n",
+ "print \"force of attraction is\",round(F,4),\"N\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "intensity at electric field at q1 due to q2 is 0.53 *10**5 N/C\n",
+ "intensity at electric field at q1 due to q2 is 1.25 *10**5 N/C\n",
+ "force of attraction is 0.0106 N\n"
+ ]
+ }
+ ],
+ "prompt_number": 16
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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