An unusual message delivery system is pictured in Figure
Chapter 19, Problem 19.19(choose chapter or problem)
An unusual message delivery system is pictured in Figure P19.19. A 15-cm length of conductor that is free to move is held in place between two thin conductors. When a 5.0-Acurrent is directed as shown in the gure, the wire segment moves upward at a constant velocity. If the mass of the wire is 15g, nd the magnitude and direction of the minimum magnetic eld that is required to move the wire. (The wire slides without friction on the two vertical conductors.)
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