Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
The permittivity of free space is a physical constant that represents the ability of a vacuum to permit the formation of an electric field. It quantifies how easily electric fields can be established in empty space.
Related terms
Electric Field: A region surrounding charged particles where other charged particles experience forces.
Dielectric Constant: A property that measures how well a material can store electrical energy when placed between two conductive plates.