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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
- A projectile is thrown in the upward direction making an angle of 60°with the horizontal
- The condition under which a microwave oven heats up a food item containing
- Two resistances 3Ω and 6Ω are connected in parallel
- A particle of mass 100 g is thrown vertically upwards with a speed of 5 m/s. The work
- The electric field in a certain region is acting radially outward and is given by E=Ar.
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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