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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
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In the middle of the depletion layer of a reverse-biased P-N junction, the
- If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
- The angle of incidence for a ray of light at a refracting surface of a prism is 45⁰.
- In the relation n=PV/RT, n stands for
- An inclined plane makes an angle of 30° with the horizontal.A solid sphere
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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