Variation of Primary Electron Current with Accelerating Voltage in Mercury Vapor

Abstract

To find the eritieal of mercury from the curve of the relstion between primary clectron current and the accelerating voltage, measurements were made in a range of about 8 to 30 volts. Although the search forthe eritieal potentinls yiekled negativn resultn, two very clear "hnmps" were obaerved at 13.13 and 18.13 volts respectively