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A short bar magnet placed with its axis ...

A short bar magnet placed with its axis at `30^@` experiences a torque of `0*016N-m` in an external field of `800G`.
(a) What is the magnetic moment of the magnet? (b) What is the work done by an external force in moving it from its most stable to most unstable position? (c) What is the work done by force due to external magnetic field in the process mentioned in (b)? (d) The bar magnet is replaced by solenoid of cross sectional area `2xx10^-4m^2` and `1000` turns, but the same magnetic moment. Determine the current flowing through the solenoid.

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A short bar magnet placed with its axis at 30^(@) with an external field of 800 G experiences a torque of 0.016 Nm. (a)What is the magnetic moment of the magnet ?

A short bar magnet placed with its axis at 30^(@) with an external field of 800 G experiences a torque of 0.016 Nm. What is the magnetic moment of the magnet ?

A short bar magnet placed with its axis at 30^(@) with an external field of 800 G experiences a torque of 0.016 Nm. What is the magnetic moment of the magnet ?

A short bar magnet placed with its axis at 30^(@) with an external field of 800 G experiences a torque of 0.016 Nm. What is the magnetic moment of the magnet ?

A short bar magnet placed with its axis at 30^(@) with an external field of 800 G experiences a torque of 0.016 Nm. The bar magnet is replaced by a solenoid of cross-sectional area 2 xx 10^(-4) m^(2) and 1000 turns, but of the same magnetic moment. Determine the current flowing through the solenoid.