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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
- Before using the tangent galvanometer, its coil is set in
- The coefficient of friction between the tyres and the road is 0.25. The maximum speed
- A charged particle enters a uniform magnetic field with a certain speed at right angles
- A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string
- A planet moving along an elliptical orbit is closest to the sun at a distance of r₁
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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