A rod of metal is forced to move with constant velocity all along two metal rails, joined with a strip of metal at one end. A magnetic field of magnitude B = 0.35 T points out of the page.
i) When the rails are separated by L = 25 cm and the speed of rod is 55 cm/s, then what emf is produced?
ii) When the rod has a resistance of 18 ohms and the rails and connector have negligible resistance, then determine the current in the rod?
iii) At what rate is energy being transferred to the thermal energy?