Initial commit

1 files changed, 167 insertions, 0 deletions

diff --git a/Engineering_Physics_by_K_Rajagopal/13-Magnetic_Materials.ipynb b/Engineering_Physics_by_K_Rajagopal/13-Magnetic_Materials.ipynb
new file mode 100644
index 0000000..878df75
--- /dev/null
+++ b/Engineering_Physics_by_K_Rajagopal/13-Magnetic_Materials.ipynb
@@ -0,0 +1,167 @@
+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 13: Magnetic Materials"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.1: example_1.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear all;\n",
+"u0=4*%pi*1e-7;\n",
+"H=1e7;//magnetic field strength\n",
+"X=(-0.9)*1e-6;//magnetic suseptiblity\n",
+"M=X*H;//magnetization of material\n",
+"disp('A/m',M,'magnetization of material is=');\n",
+"B=u0*H;//magnetic flux density\n",
+"disp('Wb/m^2',B,'magnetic flux density is=');"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.2: example_2.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear all;\n",
+"X=2*1e-3;//magnetic suseptibility of material at room temp.\n",
+"H=1e3;//magnetic field intrnsity of piece of ferricoxide\n",
+"u0=4*%pi*1e-7;\n",
+"M=X*H;//magnetization\n",
+"disp('A/m',M,'magnetization is=');\n",
+"ur=X+1;//relative permiability\n",
+"B=u0*ur*H;//magnetic flux density\n",
+"disp('W/m^2',B,'magnetic flux density is=');"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.3: example_3.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear all;\n",
+"M=2.74*1e8;//magnetization per atom in A/m\n",
+"a=2.66*1e-10;//elementry cube edge\n",
+"n=2;//Iron in BCC\n",
+"B=(M*a*a*a)/2;//Am^2 per atom\n",
+"disp('Am^2',B,'Am^2 per atom=');\n",
+"//interms of bohr megneton\n",
+"b=B/(9.27*1e-24);//dipole moment\n",
+"disp('bohr megnaton/atom',b,'dipole moment is=');\n",
+"//slight variation in ans than book.. checked in calculator also"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.4: example_4.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear all;\n",
+"u0=4*%pi*1e-7;\n",
+"b=9.27*1e-24;\n",
+"H=1e3;//homogeneous field\n",
+"k=1.38*1e-23;//boltzmann constant\n",
+"T=303;//temp in kelvin\n",
+"T1 = T - 273; // Temp In Degree\n",
+"x=u0*b*H/(k*T);//avg magnetic moment\n",
+"disp('bohr magneton/spin',x,'avg magnetic moment is=');"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 13.5: example_5.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clc;\n",
+"clear all;\n",
+"ur=16;//relative permiability\n",
+"I=3300;//intensity of magnetization\n",
+"H=I/(ur-1);//strength of the field\n",
+"disp('A/m',H,'strength of the field');"
+   ]
+   }
+],
+"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
+}