Answer: Torque(Ļ) = NIABsinĪø
Explanation:
Motors have loops of wire in a magnetic field. When current is passed through the loops, the magnetic field exerts torque on the loops, which rotates a shaft.
If we have a multiple loop ofĀ NĀ turns, we getĀ NĀ times the torque of one loop. Finally, note that the area of the loop isĀ A = wl; the expression becomes
Torque(Ļ) = NIABsinĪø
Where N = number of turn of the loop
I = current
A = area
B = magnetic field.