Question

A two-turn circular wire loop of radius 0.737 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.591 T. If the entire wire is reshaped from a twoturn circle to a one-turn circle in 0.116 s (while remaining in the same plane), what is the magnitude of the average induced emf E in the wire during this time? Use Faraday’s law in the form E = − ∆(N Φ) ∆t . Answer in units of V.

Answer #1

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