266. Calculate the electrophoretic velocity of clay particles if the ζ-potential of the particles is 48.8 mV. The potential difference between the electrodes is 220 V, and the distance between them is 0.44 m. The viscosity is 0.001 N * s / m, and the dielectric constant is ε \u003d 81 * ( 1 / (9 * 109) ) F / m. The shape of the particles is spherical.
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