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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
- The wetability of a surface by a liquid depends primarily on
- The ratio of the nuclear radii of elements with mass numbers 216 and 125 is
- The amplitude of S.H.M. y=2 (sin 5πt+√2 cos 5πt) is
- A round uniform body of radius R, mass M and moment of inertia I rolls down
- The wavelength λₑ of an electron and λₚ of a photon are of same energy E are related by
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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