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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 work function of sodium is 2.3 eV. The threshold wavelength of sodium will be
- The earth radiates in the infrared region of the spectrum. The spectrum is correctly
- The temperature of a body falls from 50⁰C to 40⁰C in 10 minute. If the temperature
- In the Young’s double slit experiment, the intensity of light at a point on the screen
- A lead bullet of 10 gm travelling at 300 m/s strikes against a block
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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