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{
"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
}
|
