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The material of permanent magnet has...

The material of permanent magnet has

A

High retentivity, low coercivity

B

Low retentivity, high coercivity

C

Low retentivity, low coercivity

D

High retentivity, high coercivity

Text Solution

Verified by Experts

The correct Answer is:
D
From the characteristic of B-H curve.
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A2Z-MAGNETISM AND MATTER-Magnetic Materials
  1. A ferromagnetic material is heated above its curie temperature. Which ...

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  2. If a diamagnetic substance is brought near north or south pole of a ba...

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  3. The material of permanent magnet has

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  4. A diamagnetic material in a magnetic field moves

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  5. Which one of the following is a non-magneticsubstance?

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  6. Liquid oxygen remains suspended between two pole faces of a magnet bec...

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  7. Temperature above which a ferromagnetic substance becomes paremagnetic...

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

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  9. Curie's law can be written as

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  10. The variation of magnetic susceptibility (chi) with temperature for a ...

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  11. The variation of magnetic susceptibility (chi) with magnetising field ...

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  12. The variation of magnetic susceptibility (chi) with absolute temperatu...

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

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  14. Which of the following is true?

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  15. A superconductor exhibits perfect

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  16. Identify the paramagnetic substance

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  17. If a magnetic substance is kept in a magnetic field, then which of the...

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  18. When a magnetic substance is heated, then it

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  19. The only property possessed by ferromagnetic substance is

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  20. Substance in which the magnetic moment of a single atom is not zero, i...

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