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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.
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संबंधित प्रश्न
Give any ‘two’ points of differences between diamagnetic and ferromagnetic substances.
The magnetic susceptibility of annealed iron at saturation is 4224. Find the permeability of
annealed iron at saturation. (μ0 = 4Π × 10−7 SI unit)
Explain Curie’s law for a paramagnetic substance.
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Magnetization of the sample is ______.
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Why is diamagnetism, in contrast, almost independent of temperature?
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The given figure represents a material which is ______.
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Reason: At Curie point a ferromagnetic substance start behaving as a paramagnetic substance.
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S is the surface of a lump of magnetic material.
- Lines of B are necessarily continuous across S.
- Some lines of B must be discontinuous across S.
- Lines of H are necessarily continuous across S.
- Lines of H cannot all be continuous across S.
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- Assertion (A): Diamagnetic substances exhibit magnetism.
- Reason (R): Diamagnetic materials do not have a permanent magnetic dipole moment.
