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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: - In an AC circuit the potential differences across an inductance and resistance joined
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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
- In an AC circuit the potential differences across an inductance and resistance joined
- When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid
- A charge of 100 μC has a potential at a distance of 9 m is
- When 10¹⁹elecrons are removed from a neutral metal plate through some process,
- The ratio of specific charge of an α-particle to that of a proton is
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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