In Fig. 28-44, a metal wire of mass m 24.1 mg can slide with negligible friction on two
Chapter 28, Problem 46(choose chapter or problem)
In Fig. 28-44, a metal wire of mass m 24.1 mg can slide with negligible friction on two horizontal parallel rails separated by distance d 2.56 cm. The track lies in a vertical uniform magnetic field of magnitude 56.3 mT. At time t 0, device G is connected to the rails, producing a constant current i 9.13 mA in the wire and rails (even as the wire moves). At t 61.1 ms, what are the wires (a) speed and (b) direction of motion (left or right)? B mB Figure 28-44 46.
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