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MHT CET202015 Oct 2020Morning ShiftPhysicsMagnetic Effects of CurrentActual

A wire of magnetic material of length '2L' and magnetic moment 'M' is bent at the centre to form 'L' shaped wire. Its magnetic moment is

Options

  1. AM 2
  2. BM
  3. CM 3
  4. DM 2

Correct answer

A. M 2

Step-by-step solution

Each half of the needle will possess a dipole moment M 2 . Now, the L shape is equivalent to two dipole arranged perpendicular to each other . So, effective dipole moment is given by

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