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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
- Light from the constellation Virgo is observed to increase in wavelength by 0.4%
- A vibration magnetometer placed in magnetic meridian has a small bar magnet
- If longitudinal strain for a wire is 0.03 and its poisson’s ratio is 0.5
- In an a.c circuit the e.m.f. (e) and the current (i) at any instant are given
- The electric field part of an electromagnetic wave in a medium is represented 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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