132 21 A closed iron ring is held horizontally and a bar 26 magnet is dropped through the ring with its length along the axis of

Question

132 21 A closed iron ring is held horizontally and a bar 26 magnet is dropped through the ring with its length along the axis of the ring The acceleration of the falling magnet is a equal to g b less than g c more than g d depends on the diameter of the ring and length of magnet CERVATION OF ENERGY

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