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-{
- "metadata": {
- "name": "",
- "signature": "sha256:859464a7b9c1dff7d24f65e6024e51cc8bc55fc7979a3e8c04919720ca49d3b9"
- },
- "nbformat": 3,
- "nbformat_minor": 0,
- "worksheets": [
- {
- "cells": [
- {
- "cell_type": "heading",
- "level": 1,
- "metadata": {},
- "source": [
- "Chapter 15 Classification of Magnetic Materials"
- ]
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 15.1 Page no 457"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Given\n",
- "q=0.12 #TA**-1m\n",
- "q1=4*math.pi*10**-7 #TA**-1m\n",
- "\n",
- "#Calculation\n",
- "import math\n",
- "q3=q/q1\n",
- "e=q3-1\n",
- "\n",
- "#Result\n",
- "print\"Relative permeability is\",round(q3*10**-4,2),\"10**4\"\n",
- "print\"susceptibility is\",round(e*10**-4,2),\"10**4\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Relative permeability is 9.55 10**4\n",
- "susceptibility is 9.55 10**4\n"
- ]
- }
- ],
- "prompt_number": 17
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 15.2 Page no 457"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Given\n",
- "A=0.5*10**-4 #m**2\n",
- "H=1200 #Am**-1\n",
- "W=599\n",
- "Q=4*math.pi*10**-7 #TA\"**-1m\n",
- "\n",
- "#Calculation\n",
- "import math\n",
- "Z=Q*(1+W)\n",
- "Z1=Z*H\n",
- "Z2=Z1*A\n",
- "\n",
- "#Result\n",
- "print\"(i) Z produced is\",round(Z*10**4,2),\"10**-4\",\"TA**-1m\"\n",
- "print\"(ii) Z1 produced is\",round(Z1,3),\"T\"\n",
- "print\"(iii) Z2 produced is\",round(Z2*10**5,3),\"10**-5\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "(i) Z produced is 7.54 10**-4 TA**-1m\n",
- "(ii) Z1 produced is 0.905 T\n",
- "(iii) Z2 produced is 4.524 10**-5\n"
- ]
- }
- ],
- "prompt_number": 66
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 15.3 Page no 457"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Given\n",
- "I=1.2 #A\n",
- "Q=800\n",
- "A=0.15 #m\n",
- "S=3500\n",
- "K=4*math.pi*10**-7\n",
- "\n",
- "#Calculation\n",
- "import math\n",
- "L=2*math.pi*A\n",
- "n=S/L\n",
- "B=(K*Q*S*I)/L\n",
- "\n",
- "#Result\n",
- "print\"The magnetic field in the core for a magnetising current of 1.2 A is\",B,\"T\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "The magnetic field in the core for a magnetising current of 1.2 A is 4.48 T\n"
- ]
- }
- ],
- "prompt_number": 73
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 15.4 Page no 457"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Given\n",
- "H=2*10**3 #Am**-1\n",
- "I=4.8*10**-2 #Am**-1\n",
- "T=280 #K\n",
- "T1=320.0 #K\n",
- "\n",
- "#Calculation\n",
- "S=I/H\n",
- "S1=S*(T/T1)\n",
- "S2=S1*H\n",
- "\n",
- "#Result\n",
- "print\"The susceptibility of aluminium is raised to 280 k is\",S*10**5,\"10**3\"\n",
- "print\"The temperature of the aluminium is raised to 320 k is\",S1\n",
- "print\"The suscepitibility and intensity of magnetistionis\",S2*10**2,\"10**-2\",\"Am**-1\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "The susceptibility of aluminium is raised to 280 k is 2.4 10**3\n",
- "The temperature of the aluminium is raised to 320 k is 2.1e-05\n",
- "The suscepitibility and intensity of magnetistionis 4.2 10**-2 Am**-1\n"
- ]
- }
- ],
- "prompt_number": 90
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 15.5 Page no 458"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Given\n",
- "W=3.2*10**4 #J\n",
- "M=8.4\n",
- "D=7200\n",
- "v=50 #cycle s**-1\n",
- "T=30*60 #s\n",
- "\n",
- "#Calculation\n",
- "V=M/D\n",
- "Q=W/(V*v*T)\n",
- "\n",
- "#Result\n",
- "print\"The value of energy is\",round(Q,1),\"J m**-3 cycle**-1\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "The value of energy is 304.8 J m**-3 cycle**-1\n"
- ]
- }
- ],
- "prompt_number": 95
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 15.6 Page no 458"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Given\n",
- "m=4.5 #Am\n",
- "l=0.06 #m\n",
- "A=0.9*10**-4 #m**2\n",
- "r=0.06 #m\n",
- "J=4*math.pi*10**-7\n",
- "\n",
- "#Calculation\n",
- "I=m/A\n",
- "H1=m/(4*math.pi*r**2)\n",
- "H2=m/(4*math.pi*r**2)\n",
- "H=H1+H2\n",
- "B=J*(-H+I)\n",
- "\n",
- "#Result\n",
- "print\"(a) Intensity of the magnetisation is\", I*10**-4,\"10**4 A/m\"\n",
- "print\"(b) Magnetic intensity is\",round(H,0),\"A/m\"\n",
- "print\"(c) Magnetic induction is\",round(B*10**2,2),\"*10**-2 T\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "(a) Intensity of the magnetisation is 5.0 10**4 A/m\n",
- "(b) Magnetic intensity is 199.0 A/m\n",
- "(c) Magnetic induction is 6.26 *10**-2 T\n"
- ]
- }
- ],
- "prompt_number": 16
- },
- {
- "cell_type": "heading",
- "level": 2,
- "metadata": {},
- "source": [
- "Example 15.7 Page no 458"
- ]
- },
- {
- "cell_type": "code",
- "collapsed": false,
- "input": [
- "#Given\n",
- "m=1.5*10**-23 #J/T\n",
- "n=2.0*10**24\n",
- "a=15 #%\n",
- "T1=4.2 #K\n",
- "T2=2.8\n",
- "B1=0.84 #T\n",
- "B2=0.98\n",
- "\n",
- "#Calculation\n",
- "M=m*n\n",
- "M1=M*(a/100.0)\n",
- "M2=M1*T1*B2/(T2*B1)\n",
- "\n",
- "#Result\n",
- "print\"Total dipole moment is\",M2,\"J/T\""
- ],
- "language": "python",
- "metadata": {},
- "outputs": [
- {
- "output_type": "stream",
- "stream": "stdout",
- "text": [
- "Total dipole moment is 7.875 J/T\n"
- ]
- }
- ],
- "prompt_number": 18
- }
- ],
- "metadata": {}
- }
- ]
-} \ No newline at end of file
generated by cgit (git 2.34.1) at 2025-01-05 09:19:22 +0000