A packet of colloidal system is taken in which colloidal particles are still. Two electrodes are taken in system and voltage is applied so that liquid medium moves under the influence of electric field. This phenomenon is called

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Electroosmosis : When electrophoresis of dispersed particles in a colloidal system is presented by some suitable means, it is observed that the dispersion medium itself begins to move in an electric field. This phenomenon is called as electroosmosis.