我想知道 electrical permittivity of polthene,
report 要用,唔係relative permittivity.
唔該~~~
(急)Electrical permittivity of polythene
2007-04-12 7:03 pm
回答 (1)
2007-04-12 7:56 pm
✔ 最佳答案
electrical permittivity of polthene = relative permittivity (or dielectric constant) x permittivity of free spacerelative permittivity of Polythene = 2.3
permittivity of free space = 8.8542 x 10e-12 unit
=> electrical permittivity of polthene = 2.0365 x 10e-11 unit
(unit = Coulomb to power of 2 x Newton to power of -1 x meter to power of -2)
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