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If the magnetising field on a ferromagnetic material is increased, its permeability
Options
(a) decrease
(b) increase
(c) is unaffected
(d) may be increase or decrease
Correct Answer:
decrease
Explanation:
Magnetic permeability of substance, μ = B / H ⇒ μ ∝ 1/H
where, H is the magnetising or magnetic field strength.
So, the magnetising field of a ferromagnetic material is increasing thus its, permeability decreased.
Related Questions: - The optical path of a monochromatic light is same if it goes through 4.0 cm
- A photocell employs photoelectric effect to convert
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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 optical path of a monochromatic light is same if it goes through 4.0 cm
- A photocell employs photoelectric effect to convert
- Two point charge +9e and +e are at 16 cm away from each other.
- A rod of weight W is supported by two parallel knife edge A and B
- The electron of a hydrogen atom revolves round the proton in a circular
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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