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Curie temperature is the temperature abo...

Curie temperature is the temperature above which

A

A paramagnetic material becomes ferromagnetic

B

A ferromagnetic material becomes paramagnetic

C

A paramagnetic material becomes diamagnetic

D

A ferromagnetic material becomes diamagnetic

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The correct Answer is:
B
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ERRORLESS-MAGNETISM-NCERT BASED QUESTIONS (Magnetic Materials)
  1. When a piece of a ferromagnetic sobstance is put in a uniform magnetic...

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  2. If a ferromagnetic material is inserted in a current carring solenoid,...

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  3. Curie's law can be written as

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  4. The magnetic susceptibility of any paramagnetic material changes with ...

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  5. Curie temperature is the temperature above which

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  6. Curie-Weiss law is obeyed by iron at a temperature….

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  7. The magnetic susceptibility of a paramagnetic substance at - 173 .^(...

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  8. A domain in a ferromagnetic substance is in the form of a cube of side...

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  9. The material of permanent magnet has

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  10. The material suitable for making electromagnets should have

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  11. The use of study of hysteresis curve for a given material is to estima...

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  12. The area of hysteresis loop of a material is equinalent to 250 joule. ...

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  13. For substance hysteresis (B-H) curve are as shown in figure. For makin...

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  14. A curve between magnetic moment and temperature of magnet is

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  15. The most appropriate magnetization M versus magnetising field H curve ...

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  16. The basic magnetization curve for a ferromagnetic material is shown in...

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  17. The chi-(1//T) graph for an alloy of paramagnetic nature is shown in F...

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  18. For ferromagnetic material, the relative permeability (mu(r)), versus ...

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  19. The figure illustrate how B, the flux density inside a sample of unmag...

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  20. Core of electromagnets are made of ferromagnetic materials which have

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