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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: - An aeroplane flies 400m due to North and then 300m due to south and then flies
- An ac voltage is applied to a resistance R and an inductor L in series
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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
- An aeroplane flies 400m due to North and then 300m due to south and then flies
- An ac voltage is applied to a resistance R and an inductor L in series
- A heavy small sized sphere is suspended by a string of length l.The sphere rotates
- A heavy uniform chain lies on a horizontal top table.If the coefficient of friction
- Two positive ions, each carrying a charge q, are separated by a distance d
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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