Epsilon Naught (& epsilon ;0) is the permittivity of free space, not the value of epsilon not (& epsilon ;). Learn the definition, units and significance of epsilon naught in physics with examples and quiz. Epsilon Naught is the symbol used to represent the vacuum permittivity, which is the value of the absolute dielectric permittivity of a medium. It is also known as epsilon zero and denoted by ε0. Get to know about the basic concepts of Epsilon Naught Value or Permittivity of Free Space. Click on the link to get more information! Vacuum permittivity, commonly denoted ε0 (pronounced "epsilon nought " or "epsilon zero "), is the value of the absolute dielectric permittivity of classical vacuum.
