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Why does a compass needle get deflected ...

Why does a compass needle get deflected when brought near a bar magnet ?

Text Solution

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A compass needle is a small bar magnet.
When it is brought near a bar magnet, its magnetic field lines interact with that of the bar magnet. Hence, a compass needle shows a deflection when brought near the bar magnet.
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(a) What does a compass needle show deflection when brought near a magnet? (b) Why does a compass needle show deflection when brought near a magnet?

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Knowledge Check

  • The metallic pointer of a plotting compass gets deflected only when it is placed near a bar magnet because the pointer has :

    A
    electromagnetism
    B
    permanent magnetism
    C
    induced megnetism
    D
    ferromagnetism

  • ............ discovered that when a compass needle deflects when kept nearer to an electric circuit in which current is flowing.

    A
    Hans Christian Oersted
    B
    Michael Faraday
    C
    Galileo
    D
    Newton

  • A small piece of an unmagnetised material gets repelled when it it brought near a powerful magnet the material is

    A
    paramagnetic
    B
    diamagnetic
    C
    ferromagnetic
    D
    non magnetic

    • Similar Questions

    Explore conceptually related problems

    The needle of a magnetic compass gets deflected when placed near a current carrying wire because the current carrying wire produces

    (a) Describe an activity to show with the help of a compass that magnetic field is strongest near poles of a bar magnet. (b) Mention the direction of magnetic field lines (i) inside a bar magnet and (ii) ouside a bar magnet.

    How can a small compass needle be used to map the magnetic field due to a bar magnet?

    Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it?

    Why does a magnetic compass needle pointing North and South in the absence of a nearby magnet get deflected when a bar magnet or a current carrying loop is brought near it?

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