I have come across the dielectric constant represented by two variants of epsilon. Is there any convention behind the two variants such that:(adsbygoogle = window.adsbygoogle || []).push({});

[itex]\varepsilon[/itex] is the SI Dielectric Constant

[itex]\epsilon[/itex] is the CGS Dielectric Constant

or does it really depend on the writer and how frisky they feel?

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# Convention for the symbol of Dielectric Constant

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