Question

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?

Answers

bobpursley
If the area of the coil remains same, then emf and current remain same. I am uncertain of the question here,I am thinking it is trying you to take a length of wire l, and make a circle with it, then a square, and compare the areas.

I wonder if that is the question.
Yes, that's the question, but I'm confused as to how I should find the length.

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