Suppose the light bulb in the figure below is replaced with a short wire of zero resistance, and the resistance of the rails is negligible. The only resistance is from the moving rod, which is iron (resistivity = 9.70 × 10-8?.m). The rod has a cross-sectional area of 2.50 × 10-6m² and moves with a speed of 3.0 m/s. The magnetic field has a magnitude of 0.060 T. What is the current in the rod?