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A short bar magnetic moment of magnetic ...

A short bar magnetic moment of magnetic moment `0.9JT^(-1)`, is placed with the axis at `45^(@)` to a uniform magnetic field. If it experience a torque of 0.063 J, (i) calculate the magnitude of the magnitudic field and (ii) what orientation of the bar magnet corresponds to the stzble equillibrium in the magnetic field ?

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