Navigate

A bar magnet of magnetic moment M is placed at right angles to a magnetic

A bar magnet of magnetic moment M is placed at right angles to a magnetic induction B. If a force F is experienced by each pole of the magnet, the length of the magnet will be

Options

(a) F/MB
(b) MB/F
(c) BF/M
(d) MF/B

Correct Answer:

MB/F

Explanation:

FL = MB (= Torque)
L = MB/F

NEET2013K
admin:

Related Questions

  1. A p-n photodiode is fabricated from a semiconductor with a band gap of 2.5 eV.
  2. Photons with energy 5eV are incident on a cathode C in a photoelectric cell.
  3. A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field
  4. Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
  5. An electron of a stationary hydrogen atom passes from the fifth energy level to