Abstract
According to most theories of dielectric loss the maximum rate of change of dielectric constant and the maximum value of the specific energy loss per unit volume occur at an angular frequency ω (= 2 πv ) which is the inverse of a quantity r known as the relaxation time of the dielectric. The relaxation time is the time required for the polarization of the dielectric to revert to 1/ ϵ of its value after the removal of the applied electric field: and this is a quantity which can be determined experimentally. According to Debye’s theory of polar molecules, part of the dielectric polarization is due to the orientation of the dipoles in line with the applied field and the relaxation time is related closely to the time taken for the molecules to revert to their random positions after removal of the field.
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Schedule a callMore From: Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
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