ABSTRACT
Abstract.Theelectricchargecaniedbywaterdropsbreakingawayfromthetipsof variousverticalcannulaeatlowpotentialdifferences( -1Vto+1V)betweenthe cannulaandasurroundingmetaltubeismeasured:chargelevelcanbeexplainedbythe ordinarylawsofelectrostaticinduction,withallowanceforcontactpotential.Inthe absenceofanexternalfieldbetweenthecannulaandthesurroundingtube,byvarying ionicconcentrationandtypesofion,chargeprofilesaregeneratedtodeterminethe influenceoftheseparametersonthemechanismofthesingledropchargegeneration processes.Theeffectscanbeexplainedbytakingintoaccountthecontactpotential betweensolutionandthecannulasettingupasmalllocalelectricfieldatthedrop surface.Inductionchargingthenoccurs.
