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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 instantaneous angular position of a point on a rotating wheel is given by
- Two balls are dropped from heights h and 2h respectively. The ratio of times
- Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to
- The mean radius of the earth is R, its angular speed on its own axis is ?
- A linear aperture whose width is 0.02 cm is placed immediately in front of a lens
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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