Why dc shunt motor is used in fans?

DC shunt motors are commonly used in fans because they provide a relatively constant speed under varying load conditions, making them ideal for applications where consistent airflow is needed. Their ability to maintain speed despite changes in load is due to the shunt winding configuration, which allows for effective regulation of the motor's torque. Additionally, they offer good starting torque and can be easily controlled for speed adjustments, enhancing their versatility in fan applications.