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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
Related Questions: - The charge flowing through a resistance R varies with time t as Q=at-bt²,
- An electron having charge e and mass m is moving in a uniform electric field E.
- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
- Dimensions [ML⁻¹T⁻¹] are related with
- A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
- An electron having charge e and mass m is moving in a uniform electric field E.
- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
- Dimensions [ML⁻¹T⁻¹] are related with
- A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat
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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