We start with procedure 1: a magnet of length L is dropped so the front end is a

Question

We start with procedure 1: a magnet of lengthLis dropped so the front end is at heightHfrom the coil, and you get a graph with two peaks. Each question changes the procedure, and we wish to compare the height of the peaks on new graph to the height of the peaks in the original graph.

a) Suppose a second identical magnet is placed side by side with the first, with the north pole of each next to the south pole of the other. If the pair of magnets is now dropped from heightH, how will the graph compare to the original graph?

Explanation / Answer

   both peaks will be more than before

   The speed at which magnet falls through the coil depends upon the height, as per    vf2   =   vi2 + 2 * g * H    i.e. grater is H greater is speed and hence greater is change in flux, which results in higher peaks.

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