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Barium titanate particle of roughly 25 μm diameter is shown above a 60 μm wide electrode. Particle equilibrium position varies with driving frequency for a constant applied potential (7.5 V). Particle's center location is displayed with respect to the edge of the electrode in all cases. Electrode center is shown as a vertical dashed-dotted line. Particle positions observed in 2-propanol at (a) 40 Hz, (b) 45 Hz, and (c) 50 Hz.
