A short bar magnet pleaced with its axis...

A short bar magnet pleaced with its axis at `30^(@)` with a uniform external magnetic field of `0.16` Tesla expriences a torque of magnitude `0.032` Joule. The magnetic moment of the bar magnet will be

`0.23 "Joule"//"Tesla"`

`0.40 "Joule"//"Tesla"`

`0.80 "Joule"//"Tesla"`

zero

Text Solution

Verified by Experts

The correct Answer is:

`tau= MB_(H) sintheta implies 0.032=Mxx0.16xx sin 30^(@)`
`implies M=0.4J//tesla`

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