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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: - A shell of mass 200 g is ejected from a gun of mass 4 kg by an explosion
- Two concentric spheres kept in air have radii R and r.
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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
- A shell of mass 200 g is ejected from a gun of mass 4 kg by an explosion
- Two concentric spheres kept in air have radii R and r.
- Following figures show the arrangement of bar magnets in different configurations
- A particle in simple harmonic motion is described by the displacement function
- A 220 volts input is supplied to a transformer. The output circuit draws
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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