Most electrical machines have the ability to perform their proper functions through the interaction between electromagnetic fields, even though there are categories of motors based on other diverse electromechanical phenomena, such as electrostatic forces. The fundamental principle in which electromagnetic motors are designed and designed is that there is a kind of mechanical force in the wire when conducting the electric current if it is immersed in a magnetic field. The force refers to the Lorentz force law, being perpendicular to the wire and to the magnetic field. Considering that it is a rotating motor, there will be a rotating element, the rotor.
The rotor BC143 produces the rotation by means of the wires and the magnetic field are arranged so that a torque is generated on the rotor center line. Most magnetic motors are rotating, and linear types can also be found. In a rotating electric motor, the rotating part found inside it is called the rotor, and the stationary part, the stator part. Therefore, the motor is composed of electromagnets, positioned in grooves of the ferromagnetic material, composing the body of the rotor around the ferromagnetic material that constitutes the stator.