Article
Article
Permittivity
Article By:
Calderwood, James H. Department of Electronic Engineering, University College, Galway, Ireland.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.500400
A property of a dielectric medium that determines the forces that electric charges placed in the medium exert on each other. If two charges of q1 and q2 coulombs in free space are separated by a distance r meters, the electrostatic force F newtons acting upon each of them is proportional to the product of the charges and inversely proportional to the square of the distance between them. Thus, F is given by Eq. (1),
(1)The content above is only an excerpt.
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