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प्रश्न
Out of the two magnetic materials, 'A' has relative permeability slightly greater than unity while 'B' has less than unity. Identify the nature of the materials 'A' and 'B'. Will their susceptibilities be positive or negative?
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उत्तर
For a paramagnetic material, the relative permeability lies between 1<μr<1+ε and its susceptibility lies between 0<`chi`<ε.
Hence, 'A' is a paramagnetic material and its susceptibility is positive. This is because its relative permeability is slightly greater than unity.
For a diamagnetic material, the relative permeability lies between 0≤μr<1 and its susceptibility lies between −1<`chi`<0.
Hence, 'B' is a diamagnetic material and its susceptibility is negative. This is because its relative permeability is less than unity.
Here, μr and `chi` refer to the relative permeability and susceptibility.
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संबंधित प्रश्न
Magnetic material can be easily magnetized if magnetic susceptibility is ______.
Relative permittivity and permeability of a material are `epsilon_"r"` and `µ_"r"` respectively. Which of the following values of these quantities are allowed for a diamagnetic material?
Why is diamagnetism, in contrast, almost independent of temperature?
Assertion: The ferromagnetic substance do not obey Curie’s law.
Reason: At Curie point a ferromagnetic substance start behaving as a paramagnetic substance.
The magnetic susceptibility is negative for ______.
Which of the following property shows the property of ferromagnetic substances?
The magnetic susceptibility for diamagnetic materials is ______.
For a diamagnetic material
- Assertion (A): Diamagnetic substances exhibit magnetism.
- Reason (R): Diamagnetic materials do not have a permanent magnetic dipole moment.
