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A bar magnet with magnetic moment 2.5×10³ JT⁻¹ is rotating in horizontal plane in the space containing magnetic induction B=4×10⁻⁵ T. The work done in rotating the magnet slowly from a direction parallel to the field to a direction 45⁰ from the field, is (in joule)
Options
(a) 0
(b) 0.2
(c) 0.03
(d) 0.02
Correct Answer:
0.03
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 core of a transformer is laminated because
- In an interference experiment, third bright fringe is obtained at a point
- An object is projected with a velocity of 20 m/s making an angle of 45⁰ with horizontal.
- Radii of curvature of a converging lens are in the rato 1:2. Its focal length
- If the velocity of an electron increases, then its de Broglie wavelength will
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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