Arturo O. answered • 01/02/20
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It is a device that generates electrical current. In the simplest example, a conducting disk is rotating between the poles of a magnet. The magnetic field is perpendicular to the disk. The free electrons in the conducting disk initially move in the tangential direction with the disk rotation. As the electrons move tangentially, the perpendicular magnetic field causes the electrons to accelerate in the radial direction, resulting in current flow in the radial direction. The device has electrical contacts near the axis of rotation and near the edge of the disk. The contacts pick up the electrical current that is flowing in the radial direction.
Arturo O.
A magnetic force is produced only when there is a magnetic field acting on moving electrical charges. The direction of the magnetic force (and hence the direction of the acceleration of the moving charges) is perpendicular to both the velocity vector of the moving charges and the direction of the magnetic field. In the simplest Faraday disk, the magnetic field is axial, and the direction of the moving charges is initially tangential (because of the rotation of the conducting disk). Subsequently, the direction of the magnetic force (and hence the direction of acceleration of the electric charges) is perpendicular to both the axial and tangential directions. This means the magnetic force accelerates the charges in the radial direction.01/03/20
Aida F.
I heard that this related with right hand rule. Could you explain a bit?01/03/20