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A magnetic needle is kept in a non unifo...

A magnetic needle is kept in a non uniform magnetic field . It experiences

A

a force and a torque

B

a force but not a torque

C

a torque but not a force

D

neither a force nor a torque

Text Solution

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The correct Answer is:
A
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A magnetised needle in a uniform magnetic field experiences a torque but no net force. An iron nail near a bar magnet, however, experiences a force of attraction in addition to a torque. Why?

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Knowledge Check

  • A magnetic needle is kept in no uniform magnetic field . It experiences

    A
    a force and a torque
    B
    a force but not a torque
    C
    a torque but not a force
    D
    none of these

  • A magnet is placed in a non-uniform magnetic field. It experiences

    A
    a force but not a torque
    B
    a torque but not a force
    C
    a force and a torque
    D
    neither a force nor a torque

  • A substance is placed in a non uniform magnetic field. It experiences weak force towards the strong field. The substance is ________ type.

    A
    Ferromagnetic
    B
    diamagnetic
    C
    Paramagnetic
    D
    None of these

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