(Solved): A straight rod moves along parallel conducting rails, as shown. The rails are connected at the lef ...

A straight rod moves along parallel conducting rails, as shown. The rails are connected at the left side through a resistor so that the rod and rails form a closed rectangular loop. A uniform field perpendicular to the movement of the rod exists throughout the region. Assume the rod remains in contact with the rails as it moves. The rod experiences no friction or air drag. The rails and rod have negligible resistance. At what speed should the rod be moving to produce the downward current in the resistor? Answer in units of \( \mathrm{m} / \mathrm{s} \). Answer in units of \( \mathrm{m} / \mathrm{s} \)