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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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- what should be the velocity of an electron so that its momentum becomes equal
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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
- Curie temperature above which
- what should be the velocity of an electron so that its momentum becomes equal
- Two spheres of mass m and M are situated in air and the gravitational force
- Consider 3rd orbit of He⁺(helium), using non-relativistic approach, the speed
- The S.I. unit of electric flux is
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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