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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
- Which gate can be obtained by shorting both the input terminals of a NOR gate?
- The speed of light in media M₁ and M₂ are 1.5×10⁸ ms⁻¹ and 2×10⁸ ms⁻¹ respectively.
- A wire carrying current I has the shape as shown in adjoining figure. Linear parts
- A uranium nucleus ₉₂ U ²³⁸ emits an α-particle and a β-particle in succession.
- 540 g of ice at 0° C is mixed with 540 g of water at 80° C. The final temperature
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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