As well as the rotor depends on the similar speed of the stator current. The stator in the electric motor generates the field current which rotates in a stable speed based on the AC frequency. The working of the synchronous motor mainly depends on the 3-phase supply. The types of ac motors mainly include synchronous, asynchronous, induction motor. Please refer to this link to know more about DC series motor working & its applications These motors are mainly used in starter motors which are used in elevators and cars. This law states that whenever a magnetic field can be formed around conductor & interacts with an external field to generate the rotational motion.
The operation principle of this electric motor mainly depends on a simple electromagnetic law. In DC series motor, rotor windings are connected in series. So that the motor can be controlled from the shunt and the armatures winding can be strengthened to generate flux.
In separately excited motor, the connection of stator and rotor can be done using a different power supply. Please refer to this link to know more about DC shunt motor working and applications 2). This kind of motor is also called as shunt wound DC motor, where the winding type is known as a shunt winding. DC shunt motor works on DC and the windings of this electric motor like the armature windings and field windings are linked in parallel which is known as a shunt.
