please refer to this website
bascially it wants me to measure torque as a function of
1) strength of magnetic field between 2 helmholtz current coil (constant b-field)
2) angle between the magnetic field and the magnetic moment
3) strength of the magnetic moment
The Attempt at a Solution
can anyone enlighten me what the experiment wants me to find exactly?
it seems to be asking me to measure torque, but how do i measure torque?
torque = magnetic moment X mag field = uBsin(Theta)
so since the B-field is constant between the helmholtz current coil,
for 1) i am suppose to vary the current in the coil to produce different strength of constant B-field right?
2) since the conductor is suspended in air, how am i suppose to hold it still to vary the angle? since the b-field of the helmholtz loops are always the same.
3)since B-field is cconstant, i can only vary mag moment, so u = current x area of coil, so since area of coil is constant, i can vary current only
Last but most important, how am i suppose to measure the TORQUE physically? the picture kind of shows a measuring rotating stuff on top but i have no idea what it means?
can torque be measured physically? thanks