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A bar magnet of moment of inertia I is vibrated in a magnetic field of induction 0.4×10⁻⁴ T. The time period of vibration is 12 s. The magnetic moment of the magnet is 120Am². The moment of inertia of the magnet is (in kgm²) approximately
Options
(a) 172.8×10⁻⁴
(b) 2.1×10⁻²
(c) 1.57×10⁻²
(d) 1728×10⁻²
Correct Answer:
172.8×10⁻⁴
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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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
- A particle starts its motion from rest under the action of a constant force
- The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
- If an A.C. mains supply is given to be 220 V, what would be the average e.m.f.
- The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second
- Diameter of the objective of a telescope is 200 cm. What is the resolving power
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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