10 What type of motor is used in computer drives and wet gri

10. What type of motor is used in computer drives and wet grinders?

Solution

Ans)

Brush less DC Motors (BLDC ) motors are commonly used in computer disk drives  where precise speed control is necessary. Brushless motors may be described as stepper motors. Some of the advantages of BLDC are high torque to weight ratio, more torque per watt (increased efficiency), increased reliability, reduced noise, longer lifetime

In wet grinders most commonly used motor is Capacitor start capacitor run single-phase induction motor because In capacitor start capacitor run motor starting winding and capacitor are not disconnected, but always connected in the supply .so it has high starting and running torque.