  A novel experiment for determination of the charge related to vortices in
thin superconducting film is proposed and a number of related experimental
set-ups are also theoretically considered. The methods are based on the
Torricelli-Bernoulli effect in superconductors and the phenomenology of the
effect is briefly discussed. The vortex charge is expressed via the effective
mass of the Cooper pairs, thus both parameters, inaccessible by now, could be
simultaneously determined. The experiment would require layered
metal-insulator-superconductor structures and standard electronics employed in
kinetic measurements. The quality of the insulator-superconductor interface
should be high enough as to allow for observation of electric field effects
similar to those investigated in superconducting field-effect transistors. The
development of layer-by-layer growth technology of oxide superconductors
provides unique possibility for investigation of new fundamental effects in
these materials. In particular, the structures necessary for determination of
the vortex charge could be used to study the superconducting surface Hall
effect, Bernoulli effect, the superfluid density, etc.. In conclusion, the
systematic investigation of new effects in oxide superconductors is envisaged
as an important part of the material science underlying the oxide electronics.
