The figure shows a U-shaped conducting rail that is oriented vertically in a horizontal magnetic field B. The rail has no electric resistance and does not move. A slide wire with mass m and resistance R can slide up and down without friction while maintaining electrical contact with the rail. The slide wire is released from rest.
1. Show that the slide wire reaches a terminal speed v{term} = _______________ m/s v{term}
2. Determine the value of a terminal velocity vterm if l = 22cm , m= 9.0g ,R = 0.10Ω , and B = 0.53T.
