Question

Predict/Explain A metal ring is dropped into a localized region of constant magnetic field, as indicated in Figure $23-30$. The magnetic field is zero above and below the region where it is finite. (a) For each of the three indicated locations $(1,2,$ and 3 ), is the induced current clockwise, counterclockwise, or zero? (b) Choose the best explanation from among the following: Clockwise at 1 to oppose the field; zero at 2 because the field is uniform; counterclockwise at 3 to try to maintain the field. II. Counterclockwise at 1 to oppose the field; zero at 2 because the field is uniform; clockwise at 3 to try to maintain the field. III. Clockwise at 1 to oppose the field; clockwise at 2 to maintain the field; clockwise at 3 to oppose the field.

          Predict/Explain A metal ring is dropped into a localized region of constant magnetic field, as indicated in Figure $23-30$. The magnetic field is zero above and below the region where it is finite. (a) For each of the three indicated locations $(1,2,$ and 3 ), is the induced current clockwise, counterclockwise, or zero? (b) Choose the best explanation from among the following: Clockwise at 1 to oppose the field; zero at 2 because the field is uniform; counterclockwise at 3 to try to maintain the field. II. Counterclockwise at 1 to oppose the field; zero at 2 because the field is uniform; clockwise at 3 to try to maintain the field.
III. Clockwise at 1 to oppose the field; clockwise at 2 to maintain the field; clockwise at 3 to oppose the field.

Added by Heather G.

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