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A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in equillibrium state. The energy required to rotate it by 60⁰ is W. Now the torque required to keep the magnet in this new position is
Options
(a) W/√3
(b) √3W
(c) √3W/2
(d) 2W/√3
Correct Answer:
√3W
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 radioactive element forms its own isotope after 3 consecutive disintegrations.
- Consider two concentric spherical metal shells of radii r₁ and r₂( r₂>r₁). If the outer
- A stone tied to the end of a string of 1 m long is whirled in a horizontal circle
- If M (A; Z), Mₚ and Mₙ denote the masses of the nucleus AZ X, proton
- An electric kettle has two heating elements. One brings it to boil in ten minutes
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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