Posted by **Emily** on Friday, February 18, 2011 at 12:18am.

A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.93 V and a current of 2.7 A are induced in the coil. The wire is the re-formed into a single-turn square coil, which is used in the same magnetic field (again perpendicular to the plane of the coil and with a magnitude changing at the same rate). What emf and current are induced in the square coil?

I'm supposed to find the length of the wire and then solve for the area to find the other two values, but I'm not sure how.

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