The Hall effect in a classical two-dimensional electron gas without electrical contacts

Measurements of the phase shift between current and voltage as a function of magnetic field are reported for electrodes in an array which are capacitively coupled to the two-dimensional electron gas on liquid helium. It is experimentally shown that the phase of the current at the extreme edge of the sample decreases with magnetic field when the Hall angle comes close to 90 degrees . It is shown that this is a direct consequence of the unusual condition of total charge conservation for an electrically isolated sample.