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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.
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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 wire of length L metre carrying a current I ampere is bent in the form
- A ship A is moving westwards with a speed of 10 km/h .The time after
- In the middle of the depletion layer of a reverse-biased P-N junction, the
- A body of mass M hits normally a rigid wall with velocity V and bounces back
- A block is moving up an inclined plane of inclination 60° with velocity of 20 ms⁻¹
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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