A long  horizontally fiexed  wire carries a current  of 100 A directely above and parallel to it  is
Channel: Doubtnut
Date: 24/05/2020

A long  horizontally fiexed  wire carries a current  of 100 A directely above and parallel to it  is a fine wire   that carries a current  of 20 A and weight  0.04 N/m  The distance between the two  wires  for which the upper wire is just  supported by magnetic  repulsion is