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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
- A car is moving in a circular horizontal track of radius 10.0 m with a constant speed
- A particle of mass ‘m’ is kept at rest at a height 3R from the surface of earth
- A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s
- If energy(E), velocity(V) and time(T) are chosen as fundamental quantities,
- A spring gun of spring constant 90 N/cm is compressed 12 cm by a ball of mass
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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