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An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long solenoid having 5 turns/cm. If a current of 0.5 A is passed through the solenoid, then the magnetic moment of the rod is
Options
(a) 20 Am²
(b) 25 Am²
(c) 30 Am²
(d) 35 Am²
Correct Answer:
25 Am²
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 value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
- The intensity of magnetisation of a bar magnet is 5×10⁴ Am⁻¹. The magnetic length
- In an electrical circuit R,L,C and an AC voltage source are all connected in series.
- In Young’s double slit experiment, the phase difference between the two waves
- In vacuum, to travel distance d, light takes time t and in medium to travel distance
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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