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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
- The optical path of a monochromatic light is same if it goes through 4.0 cm
- A sample of HCl gas is placed in an electric field of 5 x 10⁴ N/C
- Sodium has body centred packing. Distance between two nearest atoms is 3.7 Å.
- The maximum wavelength of radiations emitted at 900K is 4 µm. What will be the maximum
- If h is Planck’s constant, the momentum of a photon of wavelength 0.01 Å is
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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