Permittivity of free space (ϵ0)
Definition
The permittivity of free space is a physical constant that represents the ability of empty space to permit the formation of an electric field. It quantifies how easily electric fields can be established in a vacuum.
Related terms
Dielectric constant (ϵr): The dielectric constant measures how much a material can reduce or enhance the strength of an electric field compared to empty space.
Capacitance: Capacitance is a measure of how much charge can be stored on an object per unit voltage applied across it.
Electric displacement field (D): The electric displacement field represents the total amount of electric flux per unit area that passes through a surface, including both free charges and bound charges.
"Permittivity of free space (ϵ0)" appears in:
Study guides (1)
AP Physics 2 - 4.3 Resistance and Capacitance
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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.