Electrocapillarity

Physical phenomenon

If an electric field is applied parallel to the surface of a liquid and this surface has a net charge then the surface and so the liquid will move in response to the field. This is electrocapillary flow, an example of electrocapillarity. Electrocapillary phenomena are phenomena related to changes in the surface free energy of charged fluid interfaces, for example that of the dropping mercury electrode (DME), or in principle, any electrode, as the electrode potential changes or the electrolytic solution composition and concentration change.

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