Question: You are given a length L of wire and told to form it into a current loop so as to produce the maximum possible emf

You are given a length L of wire and told to form it into a current loop so as to produce the maximum possible emf when the loop is placed in a time-varying magnetic fi eld. You investigate the three loop geometries in Figure Q21.10: a long, thin rectangle; a square; and a circle. Which one will give the largest emf?

1 mm Figure Q21.10

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Strategy We examine the definition of magnetic flux To achieve maximum emf we would need the magneti... View full answer

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