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प्रश्न
Is the permeability of a ferromagnetic material independent of the magnetic field? If not, is it more for lower or higher fields?
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उत्तर
The permeability of ferromagnetic materials is not independent of the applied magnetic field. It is greater for a lower field and vice versa.
संबंधित प्रश्न
The susceptibility of a magnetic material is − 2.6 × 10−5. Identify the type of magnetic material and state its two properties.
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Choose the correct option:
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Reason: At Curie point a ferromagnetic substance start behaving as a paramagnetic substance.
Assertion: A paramagnetic sample display greater magnetisation (for the same magnetic field) when cooled.
Reason: The magnetisation does not depend on temperature.
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- Some lines of B must be discontinuous across S.
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Curie temperature for soft iron is 770°C.
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