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Two long parallel conductors carry currents i subscript 1 end subscript equals 3 A text  and  end text i subscript 2 end subscript equals 3 A both are directed into the plane of paper The magnitude of resultant magnetic field at point ‘P; is

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  1. 7 m T    
  2. 13mT    
  3. 12mT    
  4. 5mT    

    Answer:The correct answer is: 13mT

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