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{
"metadata": {
"name": "",
"signature": "sha256:5dfcc3b8a36b2e69e76da78cbe3cbbcd618d029b3ed8c322ee0560bc514169c3"
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter9:DIELECTRIC PROPERTIESOF MATERIALS"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex9.1:pg-269"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"#to calculate dielectric constant of the liquid\n",
"#capacitance of the air filled dielectric Cair=Q/Vo-----------eq(1)\n",
"#when dielectric is filled between the plates ,Cliquid=Q/V\n",
"#then Cliquid=epsilonr*Q/Vo------eq(2)\n",
"Vo=60\n",
" #voltage in volts\n",
"V=30\n",
"#from eq(1) and eq(2),we get\n",
"epsilon0=Vo/V\n",
"print \"the dielectric constant of the liquid is epsilon0=\",epsilon0,\"unitless\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"the dielectric constant of the liquid is epsilon0= 2 unitless\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex9.2:pg-269"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"#to calculate charge on the capacitance\n",
"epsilon0=8.854*10**-12 #permittivity\n",
"epsilonr=6 #relative permittivity\n",
"V=100 #voltage in volts\n",
"d=1.5*10**-3 #distance in m\n",
"A=4*10**-4#area in m**2\n",
"Q=epsilon0*epsilonr*A*V/d\n",
"print \"the charge on the capacitance is Q=\",\"{:.2e}\".format(Q),\"Coulomb\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"the charge on the capacitance is Q= 1.42e-09 Coulomb\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Ex9.3:pg-269"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"import math\n",
"#to calculate voltage\n",
"A=6.50*10**-4 #area in m**2\n",
"Q=2*10**-10 #charge in C\n",
"d=4*10**-3 #plate separation in m\n",
"epsilon0=8.854*10**-12\n",
"epsilonr=3.5 #dielectric constant\n",
"V=Q*d/(epsilon0*epsilonr*A)\n",
"print \"the resultant voltage across the capacitor is V=\",round(V,1),\"volt\"\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"the resultant voltage across the capacitor is V= 39.7 volt\n"
]
}
],
"prompt_number": 2
}
],
"metadata": {}
}
]
}
|
