From 41f1f72e9502f5c3de6ca16b303803dfcf1df594 Mon Sep 17 00:00:00 2001 From: Thomas Stephen Lee Date: Fri, 4 Sep 2015 22:04:10 +0530 Subject: add/remove/update books --- .../Chapter_08_Magnetic_Properties_1.ipynb | 323 --------------------- 1 file changed, 323 deletions(-) delete mode 100755 Applied_Physics/Chapter_08_Magnetic_Properties_1.ipynb (limited to 'Applied_Physics/Chapter_08_Magnetic_Properties_1.ipynb') diff --git a/Applied_Physics/Chapter_08_Magnetic_Properties_1.ipynb b/Applied_Physics/Chapter_08_Magnetic_Properties_1.ipynb deleted file mode 100755 index b2a8def3..00000000 --- a/Applied_Physics/Chapter_08_Magnetic_Properties_1.ipynb +++ /dev/null @@ -1,323 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:708d3f2a9798f4d28f6ce90536d50509c591ba2ba31051121346b4739b2aea82" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Chapter 8:Magnetic Properties" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 8.1 , Page no:236" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "from __future__ import division\n", - "\n", - "#given\n", - "X=-0.5E-5; #magnetic susceptibility of silicon\n", - "H=0.9E4; #in A/m (magnetic field intensity)\n", - "mu0=4*3.14*1E-7; #in H/m (absolute permeability)\n", - "\n", - "#calculate\n", - "I=X*H; #calculation of intensity of magnetism\n", - "B=mu0*H*(1+X); #calculation of magnetic flux density\n", - "\n", - "#result\n", - "print\"The intensity of magnetism is I=\",I,\"A/m\";\n", - "print\"The magnetic flux density is B=\",round(B,3),\"Wb/m^2\";\n", - "print \"NOTE: The answer in the textbook is wrong\" " - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "The intensity of magnetism is I= -0.045 A/m\n", - "The magnetic flux density is B= 0.011 Wb/m^2\n", - "NOTE: The answer in the textbook is wrong\n" - ] - } - ], - "prompt_number": 1 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 8.2 , Page no:236" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "from __future__ import division\n", - "\n", - "#given\n", - "r=0.052; #in nm (radius of orbit)\n", - "B=1; #in Wb/m^2 (magnetic field of induction)\n", - "e=1.6E-19; #in C (charge of electron)\n", - "m=9.1E-31; #in Kg (mass of electron)\n", - "\n", - "#calculate\n", - "r=0.052*1E-9; #changing unit from nm to m\n", - "d_mu=(e**2*r**2*B)/(4*m); #calculation of change in magnetic moment\n", - "\n", - "#result\n", - "print\"The change in magnetic moment is =\",'%.3E'%d_mu,\"Am^2\";\n", - "print \"NOTE: The answer in the textbook is wrong\" " - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "The change in magnetic moment is = 1.902E-29 Am^2\n", - "NOTE: The answer in the textbook is wrong\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 8.3 , Page no:236" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "from __future__ import division\n", - "\n", - "#given\n", - "H=220; #in A/m (magnetic field intensity)\n", - "I=3300; #in A/m (intensity of magnetisation)\n", - "\n", - "#calculate\n", - "mu_r=1+(I/H); #calculation of relative permeability\n", - "\n", - "#result\n", - "print\"The relative permeability of a ferromagentic material is =\",mu_r;" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "The relative permeability of a ferromagentic material is = 16.0\n" - ] - } - ], - "prompt_number": 3 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 8.4 , Page no:236" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "from __future__ import division\n", - "\n", - "#given\n", - "I=3000; #in A/m (intensity of magnetisation)\n", - "B=0.005; #in Wb/m^2 (magnetic flus intensity)\n", - "pi=3.14; #value of pi used in the solution\n", - "mu0=4*pi*1E-7; #in H/m (absolute permeability)\n", - "\n", - "#calculate\n", - "H=(B/mu0)-I; #calculation of magnetic force\n", - "mu_r=(I/H)+1; #calculation of relative permeability\n", - "\n", - "#result\n", - "print\"The magnetic force is H=\",round(H,3);\n", - "print\"The relative permeability is =\",round(mu_r,3);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "The magnetic force is H= 980.892\n", - "The relative permeability is = 4.058\n" - ] - } - ], - "prompt_number": 4 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 8.5 , Page no:237" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "from __future__ import division\n", - "\n", - "#given\n", - "H=4E3; #in A/m (magnetic field intensity)\n", - "N=60; #number of turns\n", - "l=12; #in cm (length of solenoid)\n", - "\n", - "#calculate\n", - "n=N/(l*1E-2); #calculation of number of turns per unit metre\n", - "#Snice H=n*i;\n", - "i=H/n; #calculation of current through the solenoid\n", - "\n", - "#result\n", - "print\"The current through the solenoid is i=\",i,\"A\";" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "The current through the solenoid is i= 8.0 A\n" - ] - } - ], - "prompt_number": 5 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 8.6 , Page no:237" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "from __future__ import division\n", - "\n", - "#given\n", - "l=30; #in cm (length of solenoid)\n", - "A=1; #in cm^2 (cross-sectional area)\n", - "N=300; #number of turns\n", - "i=0.032; #in A (current through the winding)\n", - "phi_B=2E-6; #in Wb (magnetic flux)\n", - "pi=3.14; #value of pi used in the solution\n", - "mu0=4*pi*1E-7; #in H/m (absolute permeability)\n", - "\n", - "#calculate\n", - "l=l*1E-2; #changing unit from cm to m\n", - "A=A*1E-4; #changing unit from cm^2 to m^2\n", - "B=phi_B/A; #calculation of flux density\n", - "H=N*i/l; #calculation of magnetic intensity\n", - "mu=B/H; #calcluation of absolute permeability of iron\n", - "mu_r=mu/mu0; #calcluation of relative permeability of iron\n", - "\n", - "#result\n", - "print\"The flux density is B=\",B,\"Wb/m^2\";\n", - "print\"The magnetic intensity is H=\",H,\"A-turns/m\";\n", - "print\"The relative permeability of iron is =\",round(mu_r),\" (roundoff error)\";\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "The flux density is B= 0.02 Wb/m^2\n", - "The magnetic intensity is H= 32.0 A-turns/m\n", - "The relative permeability of iron is = 498.0 (roundoff error)\n" - ] - } - ], - "prompt_number": 6 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example 8.7 , Page no:238" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "import math\n", - "from __future__ import division\n", - "\n", - "#given\n", - "A=100; #in m^2 (area of Hysteresis loop)\n", - "B=0.01; #in Wb/m^2 (unit space along vertical axis or magnetic flux density)\n", - "H=40; #in A/m (unit space along horizontal axis or magnetic fild ntensity)\n", - "\n", - "#calculate\n", - "H_L=A*B*H; #calculation of magnetic intensity\n", - "\n", - "#result\n", - "print\"The Hystersis loss per cycle is =\",round(H_L),\"J/m^2\";" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "The Hystersis loss per cycle is = 40.0 J/m^2\n" - ] - } - ], - "prompt_number": 7 - } - ], - "metadata": {} - } - ] -} \ No newline at end of file -- cgit