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Diffstat (limited to 'modern_physics_by_Satish_K._Gupta/chap17.ipynb')
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diff --git a/modern_physics_by_Satish_K._Gupta/chap17.ipynb b/modern_physics_by_Satish_K._Gupta/chap17.ipynb new file mode 100644 index 00000000..cb448cf8 --- /dev/null +++ b/modern_physics_by_Satish_K._Gupta/chap17.ipynb @@ -0,0 +1,263 @@ +{
+ "metadata": {
+ "name": "",
+ "signature": "sha256:7c5cc6b58c18456d76e825a85df242d83f70c07f62b0e167355c9552ee60085c"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+ {
+ "cells": [
+ {
+ "cell_type": "heading",
+ "level": 1,
+ "metadata": {},
+ "source": [
+ "Chapter 17 Transient Current"
+ ]
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17.1 Page no 534"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "E=3 #V\n",
+ "L=2.5 #H\n",
+ "R=50.0 #ohm\n",
+ "\n",
+ "#Calculation\n",
+ "T=L/R\n",
+ "L1=E/L\n",
+ "I0=E/R\n",
+ "\n",
+ "#Result\n",
+ "print\"(i) Time constant is\", T,\"S\"\n",
+ "print\"(ii) Rate of change of current is\",L1,\"A/S\"\n",
+ "print\"(iii) Maximum current is\",I0,\"A\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(i) Time constant is 0.05 S\n",
+ "(ii) Rate of change of current is 1.2 A/S\n",
+ "(iii) Maximum current is 0.06 A\n"
+ ]
+ }
+ ],
+ "prompt_number": 7
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17.2 Page no 534"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "E=1 #V\n",
+ "R=1 #ohm\n",
+ "L=1 #H\n",
+ "t=1 #S\n",
+ "a=2.3036\n",
+ "\n",
+ "#Calculation\n",
+ "import math\n",
+ "I=1-math.exp(-E/L)\n",
+ "t=a*math.log10(2)\n",
+ "\n",
+ "#Result\n",
+ "print\"(i) Current after 1 S is\", round(I,3),\"A\"\n",
+ "print\"(ii) Time to take the current to reach half its final value is\",round(t,3),\"S\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "(i) Current after 1 S is 0.632 A\n",
+ "(ii) Time to take the current to reach half its final value is 0.693 S\n"
+ ]
+ }
+ ],
+ "prompt_number": 15
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17.3 Page no 534"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "I0=2 #A\n",
+ "L=0.1 #H\n",
+ "R=20 #ohm\n",
+ "I=0.3 \n",
+ "a=3.333\n",
+ "b=200.0\n",
+ "\n",
+ "#Calculation\n",
+ "import math\n",
+ "t=2.3026*math.log10(a)/b\n",
+ "l=R*I*I0/L\n",
+ "\n",
+ "#Result\n",
+ "print\"Rate of change of current is\", l,\"A/s\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Rate of change of current is 120.0 A/s\n"
+ ]
+ }
+ ],
+ "prompt_number": 19
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17.4 Page no 535"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "R=2*10**6 #ohm\n",
+ "C=10**-6 #farad\n",
+ "q=0.8647\n",
+ "a=0.1353\n",
+ "\n",
+ "#Calculation\n",
+ "import math\n",
+ "t=-2*2.3026*math.log10(a)\n",
+ "\n",
+ "#Result\n",
+ "print\"Time is\", round(t,0),\"S\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Time is 4.0 S\n"
+ ]
+ }
+ ],
+ "prompt_number": 29
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17.5 Page no 535"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "C=1.443*10**-6 #F\n",
+ "t=60 #S\n",
+ "\n",
+ "#Calculation\n",
+ "import math\n",
+ "a=2.303*math.log10(2)\n",
+ "R=t/(C*a)\n",
+ "\n",
+ "#Result\n",
+ "print\"Value of resistance is\", round(R*10**-6,0),\"*10**6 ohm\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Value of resistance is 60.0 *10**6 ohm\n"
+ ]
+ }
+ ],
+ "prompt_number": 36
+ },
+ {
+ "cell_type": "heading",
+ "level": 2,
+ "metadata": {},
+ "source": [
+ "Example 17.6 Page no 535"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "collapsed": false,
+ "input": [
+ "#Given\n",
+ "L=200*10**-6 #H\n",
+ "f1=8*10**5\n",
+ "f2=12*10**-5 #Hz\n",
+ "\n",
+ "#Calculation\n",
+ "import math\n",
+ "C1=1/(4*math.pi**2*f1**2*L)\n",
+ "C=1/(4*math.pi**2*f2**2*L)\n",
+ "\n",
+ "#Result\n",
+ "print\"Range of capacitor C is\",round(C*10**-8,0),\"pF\"\n",
+ "print\"Range of capacitor C1 is\",round(C1*10**12,0),\"pF\""
+ ],
+ "language": "python",
+ "metadata": {},
+ "outputs": [
+ {
+ "output_type": "stream",
+ "stream": "stdout",
+ "text": [
+ "Range of capacitor C is 88.0 pF\n",
+ "Range of capacitor C1 is 198.0 pF\n"
+ ]
+ }
+ ],
+ "prompt_number": 52
+ }
+ ],
+ "metadata": {}
+ }
+ ]
+}
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