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The permittivity of free space, often denoted by the symbol ε₀ (epsilon naught), is a physical constant that represents the ability of a vacuum or free space to permit the transmission of electric field lines. Vacuum permittivity , Online Physics, Physics Encyclopedia, ScienceThe physical constant ε0, commonly called the vacuum permittivity , permittivity of free space or electric constant, is an ideal, (baseline) physical constant, which is the value of the absolute dielectric permittivity of classical vacuum. Its value is [Math Processing Error] = 8.854 187 817... × 10 −12 F/m (farads per metre). It is the capability of the vacuum to permit electric field lines. This constant relates the ... It may also be referred to as the permittivity of free space , the electric constant, or the distributed capacitance of the vacuum. It is an ideal (baseline) physical constant.
