Abstract
The object of investigation is the shape of a heavily charged drop placed in a weak electrostatic field. Calculations were carried out in the fourth order of smallness in the eccentricity, through which the steady-state deformation of the drop is measured. It is shown that the equilibrium shape of such a drop can be approximated by a prolate spheroid. This shape is due to the self-charge of the drop rather than to the external field, which is very weak and merely specifies a preferred direction. In an electrostatic suspension, where such a situation may take place, the deformation-related measurement inaccuracy of the critical charge can be totally eliminated if fine droplets are used.
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Original Russian Text © S.O. Shiryaeva, N.A. Petrushov, A.I. Grigor’ev, 2015, published in Zhurnal Tekhnicheskoi Fiziki, 2015, Vol. 85, No. 8, pp. 33–39.
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Shiryaeva, S.O., Petrushov, N.A. & Grigor’ev, A.I. On the equilibrium shape of a heavily charged drop suspended in a weak electrostatic field. Tech. Phys. 60, 1136–1143 (2015). https://doi.org/10.1134/S1063784215080241
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DOI: https://doi.org/10.1134/S1063784215080241