1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution For cii), the answer is: Yes. When the rod moves down, it moves across the horizontal field, cutting field lines. A current will be induced to oppose the motion. The magnetic force due to the motion is vertically upward. But I think that, the voltage is induced in a direction perpendicular to the axis along PQ. No current can be formed. Therefore the rod will slide down as normal. Why am I wrong? Thanks again.