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Physical constant

Vacuum Permittivity

The electric constant governing electrostatic force.

ε₀ = 8.854187×10⁻¹² F/m

Other constants

Speed of Light Gravitational Constant Planck Constant Reduced Planck Constant Elementary Charge Boltzmann Constant Avogadro Constant Gas Constant Vacuum Permeability Electron Mass Proton Mass Stefan–Boltzmann Constant