Difference between induction and synchronous motor

Question

Accepted Answer

Induction motors rely on induction to produce torque, while synchronous motors require a magnetic field to rotate at a constant speed.

Induction motors do not require any external connections to the rotor, while synchronous motors need a DC power source to create the magnetic field.
Induction motors are self-starting, while synchronous motors require external means to start.
Induction motors are more commonly used in industrial applications due to their simplicity and ruggedness, while synchronous motors are used in applications where precise speed control is required.
Examples: Induction motors are used in fans, pumps, and compressors, while synchronous motors are used in clocks, tape recorders, and turntables.

Accepted Answer

the rotor speed in an induction motor is less than the stator speed, while the rotor speed in a synchronous motor is equal to the stator speed.

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