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Question

Three identical bar magnets each of magnetic moment M are placed in the form of an equilateral triangle as shown. The net magnetic moment of the system is

  1. Zero    
  2. 2 M    
  3. M square root of 3    
  4. fraction numerator 3 M over denominator 2 end fraction    

The correct answer is: 2 M


    The resultant magnetic moment can be calculated as follows.

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