Physics-
General
Easy

Question

In given figure, X and Y are two long straight parallel conductors each carrying a current of 2 A. The force on each conductor is F newtons. When the current in each is changed to 1 A and reversed in direction, the force on each is now

  1. F/4 and unchanged in direction    
  2. F/2 and reversed in direction    
  3. F/2 and unchanged in direction    
  4. F/4 and reversed in direction    

The correct answer is: F/4 and unchanged in direction

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