A metal ring is inserted through the soft iron cylinder which is wounded with copper wire when AC is supplied between the ends of the coil, then …………….. A) the metal ring is levitated on the coil. B) the metal ring is levitated and falls down immediately. C) the metal ring rotates round the cylinder without levitation. D) none.

A metal ring is inserted through the soft iron cylinder which is wound

1.	A metal ring is inserted through the soft iron cylinder which is wounded with copper wire when AC is supplied between the ends of the coil, then …………….. A) the metal ring is levitated on the coil. B) the metal ring is levitated and falls down immediately. C) the metal ring rotates round the cylinder without levitation. D) none.
Answer» A) the metal ring is levitated on the coil.

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