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A short bar magnet of magnetic moment 0.4 JT⁻¹ is placed in a uniform magnetic field of 0.16 T. The magnet is in stable equlibrium when the potential energy is
Options
(a) -0.064 J
(b) zero
(c) -0.082 J
(d) 0.064 J
Correct Answer:
-0.064 J
Explanation:
For stable equilibrium
U = -MB
= – (0.4)(0.16)
= – 0.064 J
Related Questions: - Which of the following phenomenon exhibited the particle nature of light?
- Curie is the unit of
- A ball rolls without slipping. The raidus of gyration of the ball about an axis
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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
- Which of the following phenomenon exhibited the particle nature of light?
- Curie is the unit of
- A ball rolls without slipping. The raidus of gyration of the ball about an axis
- If radius of earth’s orbit is made 1/4, the duration of a year will become
- A galvanometer acting as a voltmeter will have
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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