Chapter 9, Problem 9.7P

The rails in Figure 9.6 each have a resistance of 2.2 $\Omega$ /m. The bar moves to the right at a constant speed of 9 m/s in a uniform magnetic field of 0.8 T. Find 1(t), 0 < t < 1 s, if the bar is at x = 2 m at t = 0 and (a) a 0.3 $\Omega$ resistor is present across the left end with the right end open-circuited; (b) a 0.3 $\Omega$ resistor is present across each end.