Materials having permeability largely greater than one are
Correct answer: C. Ferromagnetic
- A. Diamagnetic
- B. Paramagnetic
- C. Ferromagnetic
- D. None of these
Explanation
The correct answer is Ferromagnetic. Ferromagnetic materials have a permeability that is significantly greater than one, which means they can be strongly magnetised. This is due to the alignment of their internal magnetic domains in response to an external magnetic field. In contrast, diamagnetic materials have a permeability less than or equal to one and are repelled by magnetic fields, while paramagnetic materials have a permeability slightly greater than one and are weakly attracted by magnetic fields. The option None of these is incorrect because ferromagnetic materials fit the description given in the question.
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About Physics of Solids
Solids are compared through crystal structure, amorphous arrangement, elasticity, plastic deformation, stress, strain and Young’s modulus. Electrical behavior depends on available charge carriers and band structure, so conductors, insulators and semiconductors must be distinguished from mechanical properties such as strength, stiffness and brittleness.
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