****NEED PHYSICS HELP: LENZ'S LAW PROBLEM****

KennyH

Diamond Member
Sep 16, 2000
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Hey guys, studying for an exam today while watching the Twin 125's at Daytona. :D Anyway got a question for you physics gurus out there. Here it is:

A bar magnet is falling through a loop of wire with constant velocity. The north pole enters first. The induced current will be greatest when the magnet is located so that:

a) the loop is near either the north or south pole
b) the loop is near the north pole only
c) the loop is near the middle of the magent
d) with the acceleration, the induced current is zero.


I believe the answer is A becuase the induced current on the loop should be the same in magnitude with either the north or south pole. It should not matter. However, I am bad about second guessing myself. Please LMK what you think and why. FAST :(:(