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COMEDK2016PhysicsMagnetic Effects of Current

A small current carrying loop of area A behaves like a tiny magnet of magnetic moment M . Current in the loop is

Options

  1. AMA
  2. BA / M
  3. CA² M
  4. DM / A

Correct answer

D. M / A

Step-by-step solution

Magnetic moment of a coil of area A carrying current I is given by aligned M &=I A Current, I &= M A aligned

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