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An experimental study of the cathode fall in helium and argon with wire cathodes
Abstract
It was recognized rather early in the study of the phenomena of discharge of electricity through gases that the ordinary laws of conduction as found in solid and liquid conductors are not applicable to gases. It was shown by Zeleny¹ and independently by Child that Ohm's law by no means represents the distribution of potential between electrodes in an ionized gas, but that the potential gradient is large in the vicinity of the electrodes, and not uniform throughout the space between them.When the pressure of the gas surrounding the electrodes is reduced to one or two millimeters and a current passed between the electrodes, part of the intervening gas becomes luminous and part does not show any luminosity. In this case the potential gradient through the gas is decidedly irregular.
Subject Area
Condensed matter physics
Recommended Citation
Raub, L. G, "An experimental study of the cathode fall in helium and argon with wire cathodes" (1921). ETD collection for University of Nebraska-Lincoln. AAIDP13906.
https://digitalcommons.unl.edu/dissertations/AAIDP13906