Home
Class 12
PHYSICS
A magnetic needle suspended by a silk th...

A magnetic needle suspended by a silk thread is vibrating in the earth's magnetic field. If the temperature of the needle is increases by `500^(@)` C , then

A

time period decreases

B

time period remains unchanged

C

time period increases

D

the needle stops vibrating

Text Solution

Verified by Experts

The correct Answer is:
A, C, D
Magnet moment decreases with temperature. Therefore the time period will increase.
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MAGNETIC EFFECTS OF ELECTRIC CURRENT

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED -III. FILL IN THE BLANKS :|35 Videos

  • MAGNETISM AND MAGNETIC EFFECTS OF ELECTRIC CURRENT

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED - III. MATCH THE FOLLOWING :|5 Videos

  • MAGNETISM AND MAGNETIC EFFECTS OF ELECTRIC CURRENT

    FULL MARKS|Exercise TEXT EVALUATION SOLVED - NUMERICAL PROBLEMS|8 Videos

  • ELECTROSTATICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED ( VII. NUMERICAL PROBLEMS )|5 Videos

  • OPTICS

    FULL MARKS|Exercise ADDITIONAL QUESITON - II ADDITIONAL PROBLEMS:|11 Videos
FULL MARKS-MAGNETISM AND MAGNETIC EFFECTS OF ELECTRIC CURRENT -ADDITIONAL QUESTIONS SOLVED
  1. The horizontal component of earth's magnetic field at a place is 3.6 x...

    Text Solution

    |

  2. A bar magnet of magnetic moment M is cut into two parts of equal lengt...

    Text Solution

    |

  3. A magnetic needle suspended by a silk thread is vibrating in the earth...

    Text Solution

    |

  4. Demagnetisation of a magnet can be done by

    Text Solution

    |

  5. All the magnetic materials lose their magnetic properties when

    Text Solution

    |

  6. The relative permeability of a paramagnetic material is

    Text Solution

    |

  7. The relative permeability of a diamagnetic material is

    Text Solution

    |

  8. Which of the following is most suitable for the core of an electromagn...

    Text Solution

    |

  9. Soft iron is used in many parts of electrical machines for

    Text Solution

    |

  10. When a diamagnetic substance is brough near the north or the south pol...

    Text Solution

    |

  11. At Curie point, a ferromagnetic material becomes

    Text Solution

    |

  12. Magnetic permeability is maximum for

    Text Solution

    |

  13. The material of a permanent magnet has

    Text Solution

    |

  14. Which one of the following is not made of soft iron ?

    Text Solution

    |

  15. A dip circle is at right angles to the magnetic meridian. The apparent...

    Text Solution

    |

  16. A magnetic needle is placed in a uniform magnetic field. It experienec...

    Text Solution

    |

  17. Relative permeability of iron is 5500. Its magnetic susceptibility is

    Text Solution

    |

  18. The inherent property of all matter is

    Text Solution

    |

  19. A magnetic needle suspended freely

    Text Solution

    |

  20. The earth's magnetic field at a given point is 0.5 xx 10^(-5) Wb m^(2)...

    Text Solution

    |