with negligible friction on two horizontal parallel

with negligible friction on two horizontal parallel

Question
In Fig. 28-43, a metal wire of mass m = 22.1 mg can slide with negligible friction on two horizontal parallel rails separated by distance d = 2.73 cm. The track lies in a vertical uniform magnetic field of magnitude 60.9 mT. At time t = 0 s, device G is connected to the rails, producing a constant c…