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  1. Current i is flowing in a coil of area A and number of turns N, then magnetic moment of the coil, M is
    1. NiA
    2. Ni
      A
    3. Ni
      A
    4. N2 Ai
Correct Option: A

Magnetic moment linked with one turn = iA ​Magnetic moment linked with N turns = iNA amp-m2.  Here, A = Area of current loop.



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