CoMPhy Lab blogs

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Author:: Vatsal Sanjay
Date published:: Jan 21, 2025
Date modified:: Jan 21, 2025 at 11:05 CET

Permittivity of free space

In Gauss’s law, the permittivity of free space. It quantifies how an electric field propagates through a vacuum. In the standard form of Gauss’s law,

appears as the proportionality constant relating the net electric flux through a closed surface to the total charge enclosed. Numerically, . It also factors into the relationship between the speed of light , the vacuum permeability , and itself, via .