diff options
Diffstat (limited to 'Engineering_Physics/chapter4_2.ipynb')
| -rwxr-xr-x | Engineering_Physics/chapter4_2.ipynb | 756 |
1 files changed, 0 insertions, 756 deletions
diff --git a/Engineering_Physics/chapter4_2.ipynb b/Engineering_Physics/chapter4_2.ipynb deleted file mode 100755 index 80203b2d..00000000 --- a/Engineering_Physics/chapter4_2.ipynb +++ /dev/null @@ -1,756 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:544912fca601384def1f6da3b02bc7431b47e0d8f9efa5f2e7d2a367448daaa6" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Magnetic Properties" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.1, Page number 119" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "H=6.5*10**-4; #magnetic field in T\n", - "M=1.4; #field with iron\n", - "\n", - "#Calculation\n", - "chi=M/H;\n", - "mew_r=1+chi;\n", - "mew_r=math.ceil(mew_r*10**2)/10**2; #rounding off to 2 decimals\n", - "\n", - "#Result\n", - "print(\"relative permeability of iron is\",mew_r);\n", - "\n", - "#answer given in the book is wrong" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('relative permeability of iron is', 2154.85)\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.2, Page number 119" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "H=220; #field in amp/m\n", - "M=3300; #magnetisation in amp/m\n", - "\n", - "#Calculation\n", - "chi=M/H;\n", - "mew_r=1+chi;\n", - "\n", - "#Result\n", - "print(\"relative permeability is\",mew_r);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('relative permeability is', 16.0)\n" - ] - } - ], - "prompt_number": 3 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.3, Page number 120 *****" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "r=5.29*10**-11; #radius of orbit in m\n", - "B=2; #applied field in Tesla\n", - "e=1.602*10**-19; #charge of electron in coulomb\n", - "m=9.108*10**-31; #mass of electron in kg\n", - "\n", - "#Calculation\n", - "mew=(e**2)*(r**2)*B/(4*m);\n", - "\n", - "#Result\n", - "print(\"magnetic moment in Am^2 is\",mew);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('magnetic moment in Am^2 is', 3.94260574090909e-29)\n" - ] - } - ], - "prompt_number": 5 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.4, Page number 120" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "\n", - "#Variable decleration\n", - "chi=0.5*10**-5; #susceptibility \n", - "H=10**6; #field strength in amp/m\n", - "\n", - "#Calculation\n", - "mew_0=4*math.pi*10**-7;\n", - "I=chi*H;\n", - "B=mew_0*(I+H);\n", - "B=math.ceil(B*10**3)/10**3; #rounding off to 3 decimals\n", - "\n", - "#Result\n", - "print(\"intensity of magnetisation in Amp/m is\",I);\n", - "print(\"flux density in Weber/m^2 is\",B);\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('intensity of magnetisation in Amp/m is', 5.0)\n", - "('flux density in Weber/m^2 is', 1.257)\n" - ] - } - ], - "prompt_number": 7 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.5, Page number 120" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "e=2.86; #edge in armstrong\n", - "e=e*10**-10; #edge in m\n", - "Is=1.76*10**6; #magnetisation in amp/m\n", - "mewB=9.27*10**-24; #1 bohr magneton in amp m^2\n", - "\n", - "#Calculation\n", - "N=2/(e**3); #density per m^3\n", - "mewbar=Is/N;\n", - "mew_bar=mewbar/mewB;\n", - "mew_bar=math.ceil(mew_bar*10**3)/10**3; #rounding off to 3 decimals\n", - "\n", - "#Result\n", - "print(\"average dipole moment in mewB is\",mew_bar);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('average dipole moment in mewB is', 2.221)\n" - ] - } - ], - "prompt_number": 10 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.6, Page number 121 ***" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "H=10**6; #magnetic field in amp/m\n", - "chi=1.5*10**-3; #susceptibility\n", - "\n", - "#Calculation\n", - "mew_0=4*math.pi*10**-7;\n", - "M=chi*H;\n", - "B=mew_0*(M+H);\n", - "\n", - "#Result\n", - "print(\"magnetisation in Amp/m is\",M);\n", - "print(\"flux density in Tesla is\",B);\n", - "\n", - "#answer for flux density given in the book is wrong" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('magnetisation in Amp/m is', 1500.0)\n", - "('flux density in Tesla is', 1.258522017028071)\n" - ] - } - ], - "prompt_number": 11 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.7, Page number 121" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "chi=3.7*10**-3; #susceptibility \n", - "H=10**4; #field strength in amp/m\n", - "\n", - "#Calculation\n", - "mew_0=4*math.pi*10**-7;\n", - "M=chi*H;\n", - "B=mew_0*(M+H);\n", - "B=math.ceil(B*10**5)/10**5; #rounding off to 5 decimals\n", - "\n", - "#Result\n", - "print(\"magnetisation in Amp/m is\",M);\n", - "print(\"flux density in Weber/m^2 is\",B);\n", - "\n", - "#answer for flux density given in the book is wrong" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('magnetisation in Amp/m is', 37.0)\n", - "('flux density in Weber/m^2 is', 0.01262)\n" - ] - } - ], - "prompt_number": 13 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.8, Page number 121" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "r=0.052*10**-9; #radius of orbit in m\n", - "B=1; #magnetic field in Wb/m^2\n", - "e=1.6*10**-19; #charge of electron in coulomb\n", - "m=9.1*10**-31; #mass of electron in kg\n", - "\n", - "#Calculation\n", - "dmew=(e**2)*(r**2)*B/(4*m);\n", - "\n", - "#Result\n", - "print(\"magnetic moment in Am^2 is\",dmew);\n", - "\n", - "#answer given in the book is wrong" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('magnetic moment in Am^2 is', 1.901714285714286e-29)\n" - ] - } - ], - "prompt_number": 14 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.9, Page number 122" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "\n", - "#Variable decleration\n", - "chi=-0.5*10**-5; #susceptibility \n", - "H=9.9*10**4; #field strength in amp/m\n", - "\n", - "#Calculation\n", - "mew_0=4*math.pi*10**-7;\n", - "I=chi*H;\n", - "B=mew_0*H*(1+chi);\n", - "I=math.ceil(I*10**4)/10**4; #rounding off to 4 decimals\n", - "B=math.ceil(B*10**4)/10**4; #rounding off to 4 decimals\n", - "\n", - "#Result\n", - "print(\"intensity of magnetisation in Amp/m is\",I);\n", - "print(\"flux density in Weber/m^2 is\",B);\n", - "\n", - "#answer for flux density given in the book is wrong " - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('intensity of magnetisation in Amp/m is', -0.495)\n", - "('flux density in Weber/m^2 is', 0.1245)\n" - ] - } - ], - "prompt_number": 18 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.10, Page number 122" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "r=6.1*10**-11; #radius of H atom in m\n", - "new=8.8*10**15; #frequency in rev/sec\n", - "e=1.6*10**-19;\n", - "\n", - "#Calculation\n", - "mew0=4*math.pi*10**-7;\n", - "i=e*new;\n", - "B=(mew0*i)/(2*r);\n", - "mew=i*math.pi*(r**2);\n", - "i=math.ceil(i*10**7)/10**7; #rounding off to 7 decimals\n", - "B=math.ceil(B*10**3)/10**3; #rounding off to 3 decimals\n", - "\n", - "#Result\n", - "print(\"current in amp is\",i);\n", - "print(\"magnetic induction in weber/m^2 is\",B);\n", - "print(\"dipole moment in amp m^2 is\",mew);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('current in amp is', 0.0014081)\n", - "('magnetic induction in weber/m^2 is', 14.503)\n", - "('dipole moment in amp m^2 is', 1.645933169972273e-23)\n" - ] - } - ], - "prompt_number": 22 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.11, Page number 123" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "Is=1.96*10**6; #saturation magnetisation in amp/m\n", - "a=3; #cube edge of iron in armstrong\n", - "a=a*10**-10; #cube edge of iron in m\n", - "mew_b=9.27*10**-24; #bohr magneton in amp/m^2\n", - "n=2; #number of atoms per unit cell\n", - "\n", - "#Calculation\n", - "N=n/(a**3);\n", - "mewbar=Is/N;\n", - "mew_ab=mewbar/mew_b;\n", - "mew_ab=math.ceil(mew_ab*10**4)/10**4; #rounding off to 4 decimals\n", - "\n", - "#Result\n", - "print(\"average number of Bohr magnetons in bohr magneton per atom is\",mew_ab);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('average number of Bohr magnetons in bohr magneton per atom is', 2.8544)\n" - ] - } - ], - "prompt_number": 24 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.12, Page number 123" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "I=3000; #magnetisation in amp/m\n", - "B=0.005; #flux density in weber/m^2\n", - "\n", - "#Calculation\n", - "mew0=4*math.pi*10**-7;\n", - "H=(B/mew0)-I;\n", - "mew_r=(I/H)+1;\n", - "H=math.ceil(H*10**3)/10**3; #rounding off to 3 decimals\n", - "mew_r=math.ceil(mew_r*10**3)/10**3; #rounding off to 3 decimals\n", - "\n", - "#Result\n", - "print(\"magnetic force in amp/m is\",H);\n", - "print(\"relative permeability is\",mew_r);\n", - "\n", - "#answer given in the book is wrong" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('magnetic force in amp/m is', 978.874)\n", - "('relative permeability is', 4.065)\n" - ] - } - ], - "prompt_number": 28 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.13, Page number 124" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "H=1800; #magnetising field in amp/m\n", - "phi=3*10**-5; #magnetic flux in weber\n", - "A=0.2; #cross sectional area in cm^2\n", - "\n", - "#Calculation\n", - "A=A*10**-4; #cross sectional area in m^2\n", - "B=phi/A;\n", - "mew=B/H;\n", - "mew=math.ceil(mew*10**8)/10**8 #rounding off to 8 decimals\n", - "\n", - "#Result\n", - "print(\"the permeability in Henry/m is\",mew);\n", - "\n", - "#answer given in the book is wron" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('the permeability in Henry/m is', 0.00083334)\n" - ] - } - ], - "prompt_number": 31 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.14, Page number 124 ********************" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "r=0.04; #radius of circular loop in m\n", - "i=1000; #current in mA\n", - "i=i*10**-3; #current in amp\n", - "B=10**-3; #magnetic flux density in Wb/m^2\n", - "theta=45; #angle in degrees\n", - "\n", - "#Calculation\n", - "A=math.pi*(r**2);\n", - "mew=i*A;\n", - "tow=i*B*math.cos(theta);\n", - "mew=math.ceil(mew*10**6)/10**6 #rounding off to 6 decimals\n", - "\n", - "#Result\n", - "print(\"the magnetic dipole moment in amp m^2 is\",mew);\n", - "print(\"the torque in Nm is\",tow);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('the magnetic dipole moment in amp m^2 is', 0.005027)\n", - "('the torque in Nm is', 0.0005253219888177298)\n" - ] - } - ], - "prompt_number": 36 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.15, Page number 125" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "\n", - "#Variable decleration\n", - "A=100; #area of hysteris loop in m^2\n", - "B=0.01; #flux density in wb/m^2\n", - "H=40; #magnetic field in amp/m\n", - "M=7650; #atomic weight in kg/m^3\n", - "\n", - "#Calculation\n", - "hl=A*B*H;\n", - "\n", - "#Result\n", - "print(\"the hysterisis loss per cycle in J/m^3 is\",hl);" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('the hysterisis loss per cycle in J/m^3 is', 40.0)\n" - ] - } - ], - "prompt_number": 38 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Example number 4.17, Page number 125" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "#import module\n", - "import math\n", - "from __future__ import division\n", - "\n", - "#Variable decleration\n", - "hl=200; #hysterisis loss per cycle in J/m^3\n", - "M=7650; #atomic weight in kg/m^3\n", - "m=100; #magnetisation cycles per second\n", - "\n", - "#Calculation\n", - "hpl=hl*m;\n", - "pl=hpl/M;\n", - "pl=math.ceil(pl*10**4)/10**4 #rounding off to 4 decimals\n", - "\n", - "#Result\n", - "print(\"hysterisis power loss per second in watt/m^3 is\",hpl);\n", - "print(\"the power loss in watt/kg is\",pl); \n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "('hysterisis power loss per second in watt/m^3 is', 20000)\n", - "('the power loss in watt/kg is', 2.6144)\n" - ] - } - ], - "prompt_number": 40 - }, - { - "cell_type": "code", - "collapsed": false, - "input": [], - "language": "python", - "metadata": {}, - "outputs": [] - } - ], - "metadata": {} - } - ] -}
\ No newline at end of file |