Question

Is there a way to achieve rotational motion through application of magnetic force alone? That is, without the involvement of electricity?​

Answer 1

Answer:

if you let a charged particle in magnetic field such that it's velocity is perpendicular to magnetic field then then it will move in a circular path if you want it without using any charge then you need to left a bar magnetic in magnetic field and a torque will act on it but it will provide it rotation to bar by a certain angle and to achieve continues rotation either you need to use electricity or use external power source (as in case of with windmill and dam ) ( note you need to change only direction of magnetic field to it do not opposes rotation of magnet power but causes rotation of magnet bar ) by this concept electric motor works