You run south across campus while holding a metal rod horizontally. Assume that the only magnetic field present is the Earth’s magnetic field. Recall that in Tuscaloosa the Earth’s magnetic field has a horizontal component with a strength of about 23μT and a vertical component with a strength of about 43 μT.

1. If the rod is 2.0 m long and you run with a speed of 9.5 m/s, what is the magnitude of the potential difference between the ends of the rod?

2. Will the end of the rod to your left have a higher or lower potential than the end to your right?