{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Chapter 10: Magnetic materials" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 10.1: Magnetization_and_flux_density.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "//Example NO.10.1\n", "//Page No.305\n", "//To find magnetization & flux density.\n", "clc;clear;\n", "H = (10^6);//Magnetic field strength -[A/m].\n", "x = (0.5*10^-5);//Magnetic suceptibility.\n", "M = (x*H);//Magnetization.\n", "printf('\nMagnetization of the material is %.0f A/m',M);\n", "u0 = (4*%pi*10^-7);\n", "B = (u0*(M+H));//Flux density.\n", "printf('\nFlux density of the material is %.3f Wb/m^2',B);" ] } , { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 10.2: Magnetic_moment_of_nickel_atom.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "\n", "//Example NO.10.2\n", "//Page No.306\n", "clc;clear;\n", "B = 0.65;//Saturation magnetic induction -[Wb/m^2].\n", "p = 8906;//Density -[kg/m^3].\n", "Mat = 58.7;//Atomic weight of Ni\n", "A = (6.022*10^26);//Avagadro's constant.\n", "N = ((p*A)/Mat);//Number of atoms per m^-3.\n", "printf('\nNumber of atoms per m^-3 are %3.3e m^-3',N);\n", "u0 = (4*%pi*10^-7);\n", "um = (B/(N*u0));\n", "printf('\nMagnetic moment is %3.3e ',um);\n", "Mni = (um/(9.27*10^-24));\n", "printf('\nMagnetic moment of nickel atom is %.2f uB',Mni);" ] } , { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 10.3: Relative_permiability.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "//Example NO.10.3\n", "//Page No.306\n", "clc;clear;\n", "H = 1800;//Magnetic field -[A/m].\n", "F = (3*10^-5);//Magnetic flux -[Wb].\n", "A = 0.2*10^-4;//Area of cross section -[m].\n", "u0 = (4*%pi*10^-7);\n", "B = (F/A);//Magnetic flux density.\n", "printf('\nMagnetic flux density is %.1f Wb/m^2',B);\n", "ur = (B/(u0*H));//Relative permeability.\n", "printf('\nRelative permeability of the material is %.2f',ur);" ] } , { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 10.4: Saturation_magnetization.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "//Example NO.10.4\n", "//Page No.307\n", "clc;clear;\n", "u = 18.4;//Magnetic moment -[uB].\n", "uB = (9.27*10^-24);\n", "a = (0.835*10^-9);//Lattice parameter-[m].\n", "M = (u*uB/a^3);//Magnetization.\n", "printf('\nSaturation magnetization for Ni ferrite is %3.3e A/m',M);" ] } , { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 10.5: Magnetization_and_magnetic_flux_density.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "//Example NO.10.5\n", "//Page No.307\n", "clc;clear;\n", "H = (2*10^5);//Magnetic field strength -[A/m].\n", "ur = 1.01;//Relative permeability.\n", "u0 = (4*%pi*10^-7);\n", "B = (u0*ur*H);//Magnetic flux density.\n", "printf('\nMagnetic flux density is %.4f Wb/m^2',B);\n", "M = ((0.2538/u0)-(H));//Magnetization\n", "printf('\nMagnetization of the material is %.2f A/m',M);" ] } , { "cell_type": "markdown", "metadata": {}, "source": [ "## Example 10.6: Succeptibility_and_magnetic_flux.sce" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [ "\n", "//Example NO.10.6\n", "//Page No.307\n", "clc;clear;\n", "H = (500);//Magnetic field strength -[A/m].\n", "x = (1.2);//Suceptibility.\n", "M = (x*H);//Magnetization.\n", "printf('\nMagnetization of the material is %.0f A/m',M);\n", "u0 = (4*%pi*10^-7);\n", "B = (u0*(M+H));//Magnetic flux density.\n", "printf('\nMagnetic flux density inside the material is %3.3e Wb/m^2',B);" ] } ], "metadata": { "kernelspec": { "display_name": "Scilab", "language": "scilab", "name": "scilab" }, "language_info": { "file_extension": ".sce", "help_links": [ { "text": "MetaKernel Magics", "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md" } ], "mimetype": "text/x-octave", "name": "scilab", "version": "0.7.1" } }, "nbformat": 4, "nbformat_minor": 0 }