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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
- For a particle in a non-uniform accelerated circular motion correct statement is
- The intensity of magnetisation of a bar magnet is 5×10⁴ Am⁻¹. The magnetic length
- When a string is divided into three segments of length l₁, l₂ and l₃ the fundamental
- The electric potential at the surface of an atomic nucleus (z=50) of radius
- A galvanometer of 50 Ω resistance has 25 divisions. A current of 4×10⁻⁴ A gives
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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