In (Figure 1), the rod moves with a speed of 1.6 m/s on rails29.0 cm apart. The rod has a resistance of 2.1 Ω . The magneticfield is 0.31 T , and the resistance of the U-shaped conductor is26.0 Ω at a given instant.
Part A Calculate the induced emf
Part B Calculate the current in the U -shaped conductor.
Part C Calculate the external force needed to keep the rod'svelocity constant at that instant.
