In the figure, l = 12 cm , B = 0.750 T , R = 8.0 Ω , and v = 3.2 m/s.
https://session.masteringphysics.com/problemAsset/1256940/3/RW-27-50.jpg
Find the current in the resistor.
Find the magnetic force on the bar.
Find the power dissipation in the resistor.
Find the rate of the mechanical work done by the agent pulling the bar