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?

A short bar magnet placed with its axis at `30^@` with a uniform exter

1.	A short bar magnet placed with its axis at `30^@` with a uniform external magnetic field of `025T` experiences a torque of magnitude equal to `45xx10^-2J`. What is the magnitude of magnetic moment of the magnet?
Answer» Here, `theta=30^@`, `B=025T`, `tau=45xx10^-2J`, `M=?` As, `tau=MB sin theta` `:. M=(tau)/(B sin theta)=(45xx10^-2)/(025sin30^@)=0*36JT^-1`

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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?

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A short bar magnet placed with its axis at `30^@` with a uniform external magnetic field of `025T` experiences a torque of magnitude equal to `45xx10^-2J`. What is the magnitude of magnetic moment of the magnet?