A small magnet of dipole moment M is kep...

A small magnet of dipole moment `M` is kept on the arm of a deflection magnetometer set in tan `A` position at a distance of `0.2 m`. If the deflection is `60^(@)`, find the value of `P (B_(H)=0.4xx10^(-4)T)`.

`2.77 "A m"^2`

`8 "A m"^2`

`0.2 "A m"^2`

`0.9 "A m"^2`

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