A metal ring is dropped into a localized region of constant magnetic field, as indicated in the figure . The magneticfield is zero above and below the region where it is finite. For each of the three indicated locations (1, 2, and 3), is the induced current clockwise, counterclockwise, or zero?
Choose the best explanation from the following:
(A) Clockwise at 1 to oppose the field; zero at 2 because the field is uniform; counterclockwise at 3 to maintain the field.
(B) Counter-clockwise at 1 to maintain the field; zero at 2 because the field is uniform; clockwise at 3 to oppose the field.
(C) Clockwise at 1 to oppose the field; counter-clockwise at 2 to maintain the field; clockwise at 3 to oppose thefield.
