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A conducting bar with mass m and length L slides over horizontal rails that are connected to a voltage source. The voltage source maintains a constant current I in the rails and bar, and a constant, uniform, vertical magnetic field B fills the region between the rails (see the figure (Figure 1)).
B L
Part If the bar has mass m, find the distance d that the bar must move along the rails from rest to attain speed v. Express your answer in terms of the variables 2300 A, 55 cm, v, 25 kg, and 0.88 T. VALO ? 12 da 2a Submit Previous Answers Request Answer