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Vatsal Mishra
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Asked: 2025-04-04T10:54:22+00:00 In:

If the magnetizing field on a ferromagnetic material is increased, its permeability

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Poll Results

60%(A) decreases ( 3 voters )
20%(B) increases ( 1 voter )
20%(C) remains unchanged ( 1 voter )
0%(D) first decreases and then increases
Based On 5 Votes

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In ferromagnetic materials, as the magnetizing field increases, permeability initially increases, reaches a maximum and then decreases due to magnetic saturation. So, permeability does not keep increasing.
Correct answer: (A) decreases.

class 12thmagnetism and mattermcqphysics
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    1 Answer

    1. In a ferromagnetic material, as the magnetizing field increases, the permeability (μ) initially increases due to alignment of magnetic domains. However, after a certain point (near saturation), further increase in the magnetizing field causes the permeability to decrease, as most domains are already aligned.
      Answer: (A) decreases.

      For more visit here:
      https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-5/

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