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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
- From a disc of radius R, a concentric circular portion of radius r is cut-out so
- If t₁ ̷ ₂ is the half-life of a substance, then t₃ ̷ ₄ is the time in which
- The ratio of radii of planets A and B is K₁ and ratio of accelerations
- Order of e/m ratio of proton, α-particle and electron is
- The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio
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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