Permittivity and loss index
Dielectric properties of polymers
Quizzed article REF: E1850 V4
Permittivity and loss index
Dielectric properties of polymers

Author : Jean-Marc BUREAU

Publication date: February 10, 2016, Review date: November 2, 2020 | Lire en français

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1. Permittivity and loss index

1.1 Perfect dielectric

Placed in a vacuum, under DC voltage U 0 , a planar capacitor (figure 1 a)takes on a charge Q 0 related to U 0 by a linear law :

Q 0  = C 0 U 0

with :

C 0
 : 
capacitor capacity in a vacuum.

...

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