A student takes a strand of copper wire and forms it into a circular loop of circumference of 0.375 m.0.375 m. The student then places the loop in a uniform, constant magnetic field of magnitude 0.00263 T0.00263 T that is oriented perpendicular to the face of the loop. Pulling on the ends of the wire, they reduce the circumference of the loop to 0.147 m0.147 m in a time interval of 0.632 s.0.632 s. Assuming that the loop remains circular as it shrinks, what is the magnitude of the average emf E induced around the loop during this time interval?

A student takes a strand of copper wire and forms it into a circular loop of circumference of 0.375 m.0.375 m. The student then places the loop in a uniform, constant magnetic field of magnitude 0.00263 T0.00263 T that is oriented perpendicular to the face of the loop. Pulling on the ends of the wire, they reduce the circumference of the loop to 0.147 m0.147 m in a time interval of 0.632 s.0.632 s. Assuming that the loop remains circular as it shrinks, what is the magnitude of the average emf E induced around the loop during this time interval?

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