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A short bar magnet placed with its axis ...

A short bar magnet placed with its axis at `30^@` with a uniform external magnetic field of `0*25T` experiences a torque of magnitude equal to `4*5xx10^-2J`. What is the magnitude of magnetic moment of the magnet?

Text Solution

Verified by Experts

The correct Answer is:
`0.36 J T^(-1)`
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A short bar magnet placed with its axis at 30^@ with a uniform external magnetic field of 0.25 T experiences a torque of magnitude equal to 4.5 xx 10^(-2) J. What is the magnitude of magnetic moment of the magnet?

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Knowledge Check

  • A short bar magnet placed with its axis at 30^(@) with a uniform external magnetic field of 0.35 T experiences a torque of magnitude equal to 4.5xx10^(-2)Nm . The magnitude of magnetic moment of the given magnet is

    A
    `0.26JT^(-1)`
    B
    `2.6JT^(-1)`
    C
    `0.26JT^(-1)`
    D
    `0.026JT^(-1)`

  • A short bar magnet, placed with its axis at 30^@ with an external magnetic field of 0.16 T, experiences a torque of magnitude 0.032 J. The magnetic moment of the bar magnetic is :

    A
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    B
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    D
    0.4

  • A short bar magnet, placed with its axis at 30^@ with an external magnetic field of 0.16 T, experiences a torque of magnitude 0.032 J. The magnetic moment of the bar magnetic is :

    A
    4
    B
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    D
    0.4

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