Which one uses magnets for its rotor and which one uses a wire loop i'm confused
The synchronous motor is the one that uses wire loops in its rotor; they need ac and dc to work (first ac; and when it gets synchronized dc) The asynchronous motor is very common and its named induction motor. It is the work horse of the industry. None of these motors you use magnets. I hope, I helped you.
SYNCHRONOUS MOTOR USES COILS...(EG. A FAN'S MOTOR)
There are two types of motors that use wire loop in the rotor: - Synchronous AC motor where the loop carries DC current and acts as a permanent magnet. The rotation speed matches the frequency of AC current (therefore it is synchronous). This type of motor can also be built with permanent magnets instead of the loop. - Asynchronous induction motor where the current in the loop is induced by the magnetic field. The rotation speed is different from the magnetic field, therefore, the motor is asynchronous. If the speed is synchronized, the induction motor loses the current in the rotor and slips.
Synchronous motor has a rotor (the non-stationary part of a rotary electric motor) spinning, that is with coils (wire loops) which produces a magnetic field which drives it. Contrast this with an induction motor, which must slip in order to produce torque. An asynchronous motor (or induction motor) is an ac motor where power is supplied to the rotor by means of electromagnetic induction. This converts electrical power to mechanical power in its rotor (rotating part). Hope this helps...
