Suppose that the light bulb in the figure is a 60.0-W bulb with a resistance of 240 2. The magnetic field has a magnitude of 0.50 T, and the length of the rod is 65 cm. The only resistance in the circuit is that due to the bulb. What is the shortest distance along the rails that the rod would have to slide in order for the bulb to remain lit for 0.20 s? i X L X Conducting rail m