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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
Related Questions: - If R is the radius of the earth and g is the acceleration due to gravity
- Which one of the following equations of motion represents simple harmonic motion?
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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 R is the radius of the earth and g is the acceleration due to gravity
- Which one of the following equations of motion represents simple harmonic motion?
- Force required to move a mass of 1kg at rest on a horizontal rough plane
- The string of a pendulum is horizontal.The mass of bob attached to it is m
- A plane polarised light is incident normally on a tourmaline plate. Its E vector make
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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