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{
"metadata": {
"name": "",
"signature": "sha256:574b119cc7251d26efe27fb23031d2a66fe48006b301b495653100a11e0e2a3e"
},
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"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 6: Magnetism, Electromagnetism and Electromagnetic Induction"
]
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.1: page 99:"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"from __future__ import division\n",
"import math\n",
"\n",
"#given data:\n",
"I=1.5# in amperes\n",
"n=50 #turns\n",
"l=0.25#length of coil in meter\n",
"\n",
"#calculations:\n",
"H=(I*n)/l#field strength in ampere-turns/m\n",
"\n",
"#Results\n",
"print \"field strength in ampere-turns/m is\",H"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"field strength in ampere-turns/m is 300.0\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.2: page 100:"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"from __future__ import division\n",
"import math\n",
"\n",
"#given data:\n",
"I=70 # in amperes\n",
"B=0.4#flus density in Wb/m**2\n",
"n=1 #turns\n",
"\n",
"#calculations:\n",
"F=B*n*I# in newton\n",
"\n",
"#Results\n",
"print \"force in newtons is\", F"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"force in newtons is 28.0\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 6.3: page 104:"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"from __future__ import division\n",
"import math\n",
"\n",
"#given data:\n",
"b=2 #in Wb/m**2\n",
"l=6 #in cm\n",
"s=0.75#in m's\n",
"alpha=90#\n",
"\n",
"#calculations:\n",
"emf=b*l*s*(math.sin(alpha*math.pi/180))#\n",
"\n",
"#Results\n",
"print \"emf induced in volts is\",emf"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"emf induced in volts is 9.0\n"
]
}
],
"prompt_number": 3
}
],
"metadata": {}
}
]
}
|
