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NEET2013PhysicsMagnetic Effects of CurrentActual

A circular A B C D carrying a current ' i ' is placed in a uniform magnetic field, if the magnetic force on the segment A B is F , the force on the remaining segment BCDA is:

Options

  1. A- F
  2. B3 F
  3. C-3 F
  4. DF

Correct answer

A. - F

Step-by-step solution

We know that net magnetic force on a current loop in a uniform magnetic field is zero. aligned & F_ A B +F_ C B A D =0 & F _ C B A D =- F _ A B =- F & aligned

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