When a ferromagnetic substance is magnetized, small changes in dimensions occur. Such a phenomenon is

When a ferromagnetic substance is magnetized, small changes in dimensions occur. Such a phenomenon is known as
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When a ferromagnetic substance is magnetized, small changes in dimensions occur. Such a phenomenon is known as Magnetostriction.

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The phenomenon of magnetostriction occurs when a ferromagnetic substance is magnetized resulting in

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The relative permeability is less than unity is case of (a) ferromagnetic materials (b) ferrites (c) non-ferrous materials (d) diamagnetic materials

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Substances which have permeability less than the permeability of free space are known as (a) ferromagnetic (b) paramagnetic (c) diamagnetic (d) bipolar

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Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

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What characteristics do all ferromagnetic materials have in common?

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Ferrites are (A) ferromagnetic material. (B) ferrimagnetic materials. (C) anti ferromagnetic material. (D) diamagnetic materials.

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Last Answer : (A) ferromagnetic material.

The critical temperature above which the ferromagnetic materials loose their magnetic property is known as (A) hysterisis. (B) Curie point. (C) transition temperature. (D) standard temperature.

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