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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
- If a charge on the body is 1nC, then how many electrons are present on the body?
- Consider two concentric spherical metal shells of radii r₁ and r₂( r₂>r₁). If the outer
- The resultant of two forces, one double the other in magnitude, is perpendicular
- The two ends of a metal rod are maintained at temperatures 100°C and 110°C.
- Parsec is the unit of
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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