Definition of Paschen's law in English:

Paschen's law

(also Paschen law)


  • A law relating to gas discharges formulated by Paschen in 1889 (Ann. der Physik u. Chem.37 90) which states that at a constant temperature the breakdown voltage in any particular gas depends only on the product of the pressure and the interelectrode distance.


Early 20th century; earliest use found in Proceedings of the Royal Society of London.