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October 2, 2014

Homework Help: PHYSICS

Posted by sarah on Saturday, September 8, 2012 at 1:02am.

A circular loop of flexible iron wire has an initial circumference of 168cm , but its circumference is decreasing at a constant rate of 15.0cm/s due to a tangential pull on the wire. The loop is in a constant uniform magnetic field of magnitude 1.00T , which is oriented perpendicular to the plane of the loop. Assume that you are facing the loop and that the magnetic field points into the loop.
Find the magnitude of the EMF induced in the loop after exactly time 9.00s has passed since the circumference of the loop started to decrease.

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