A capacitor-start motor is a type of electric motor that uses a capacitor to provide an extra boost of starting torque. This capacitor is connected in series with the starting winding, allowing the motor to start more efficiently. Once the motor reaches a certain speed, a switch disconnects the capacitor, allowing the motor to run on its main winding. These motors are commonly used in applications where high starting torque is required, such as in air conditioners, pumps, and fans. The capacitor helps improve the motor's performance, making it suitable for various industrial and household tasks.