Question

A metal ring is inserted through the soft iron cylinder whichis wounded with copper wire. When DC is supplied betweenthe ends of the coil thenA) metal ring is levitated on the coil and stays thereB) metal ring is levitated and falls down immediatedlyC) the metal ring rotates the cylinderD) No change in the position of the metal ring​

Answer 1

B) Metal  ring is leviated and falls down immediately