Home
Class 12
PHYSICS
Assertion: The ferromagnetic substance d...

Assertion: The ferromagnetic substance do not obey Curie's law.
Reason: At Curie point a ferromagnetic substance start behaving as a paramagnetic subsrance.

A

If both the assertion and reason are true and reason is a true explanation of the assertion.

B

If both the assertion and reason are true but the reason is not the correct explanation of assertion.

C

If the assertion is true is true but reason is false.

D

If both the assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
the susceptibility of ferromagnetic substance decreases with the rise of temperature in a complicated manner. After curie's point the susceptibility of ferromagnetic substance varies inversely with its absolute temperature. Ferromagnetic substance obeys Curie's law only above its Curie point.
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • MAGNETISM AND MATTER

    A2Z|Exercise AIPMTNEET Questions|26 Videos

  • GEOMETRICAL OPTICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • MOCK TEST

    A2Z|Exercise Mock Test 3|44 Videos

Similar Questions

Explore conceptually related problems

Ferromagnetic Substances

Which one is ferromagnetic substance ?

Ferromagnetic substances have

Susceptibility of ferromagnetic substance is

Mark the correct set of ferromagnetic substances

At Curie point, a ferromagnetic material transforms into:

Magnetic permeability of ferromagnetic substance is

A2Z-MAGNETISM AND MATTER-AIIMS Questions
  1. For an isotropic medium B, mu, H and M are related as (where B, mu(0),...

    Text Solution

    |

  2. Which of the following is true?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  5. A magnet makes 40 oscillations per minute at a place having magnetic f...

    Text Solution

    |

  6. A magnet oscillating in a horizontal plane has a time period of 2 seco...

    Text Solution

    |

  7. When a piece of a ferromagnetic sobstance is put in a uniform magnetic...

    Text Solution

    |

  8. Two similar bar magnets P and Q each of magnetic moment M, are taken,....

    Text Solution

    |

  9. In a deflection magnetometer which is adjusted in the usual way. When ...

    Text Solution

    |

  10. A galvanometer gives full scale deflection of 1 volt when acting like ...

    Text Solution

    |

  11. Assertion: We cannot think of magnetic field configuration with three ...

    Text Solution

    |

  12. Assertion: The true geographic north direction is found by using a com...

    Text Solution

    |

  13. Assertion: Magnetic resonance imaging (MRI) is a useful diagnostic too...

    Text Solution

    |

  14. Assertion: Diamagnetic materials can exhibit magnetism. Reason: Diam...

    Text Solution

    |

  15. Assertion: If a compass needle be kept at magnetic north pole of the e...

    Text Solution

    |

  16. Assertion: The permeability of a ferromagnetic material is independent...

    Text Solution

    |

  17. Assertion: A compass needle when placed on the magnetic north pole of ...

    Text Solution

    |

  18. Assertion: A paramagnetic sample display greater magnetisation (for th...

    Text Solution

    |

  19. Assertion: The ferromagnetic substance do not obey Curie's law. Reas...

    Text Solution

    |

  20. Assertion: A paramagnetic sample display greater magnetisation (for th...

    Text Solution

    |