A small circular loop of area 2.32 cm2 is placed in the plane of, and concentric with, a large circular loop of radius 1.44 m. The current in the large loop is changed at a constant rate from 216 A to - 216 A (a change in direction) in a time of 1.16 s, starting at t = 0.What is the magnitude of the magnetic field at the center of the small loop due to the current in the large loop at (a) t = 0, (b) t = 0.580 s, and (c) t = 1.16 s?

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Chapter1: Units, Trigonometry. And Vectors
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A small circular loop of area 2.32 cm2 is placed in the plane of, and concentric with, a large circular loop of radius 1.44 m. The current in the large loop is changed at a constant rate from 216 A to - 216 A (a change in direction) in a time of 1.16 s, starting at = 0.What is the magnitude of the magnetic field at the center of the small loop due to the current in the large loop at (a) = 0, (b) = 0.580 s, and (c) = 1.16 s? (d) From = 0 to = 1.16 s, is B reversed? Because the inner loop is small, assume is uniform over its area. (e) What emf is induced in the small loop at = 0.580 s?

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