1. The problem statement, all variables and given/known data If I take a magnet and drop it though coil then the graph would have an increasing voltage until a maximum and then a reducing emf (until 0) and then a further reducing emf until a minimum and then an increasing emf again graph looks like this: http://www.djb.co.uk/Graphics/Physics/Teachers/magnet.gif Remember the magnet remains wholy in the coil for several seconds. Questions: 1) why does the EMF gradually increase then decrease until 0 then decrease further and then increase again?? 2) if the magnet remained wholly in the coil for a while will any voltage be induced? why? 2. Relevant equations no questions 3. The attempt at a solution 1) well if the magnet falls straight through the polarity changes but this also confuses me. how can it change if the magnet is falling through without chaging direction?