What is typically used in split-phase motors during the startup phase?

In split-phase motors, high current windings play a crucial role during the startup phase. These motors are designed with two separate windings: the main winding, which is used for running, and the auxiliary winding, which helps to create the necessary phase difference for starting.

During startup, the auxiliary winding is energized, allowing a higher current to flow through it. This enables the motor to develop the required torque to start turning. Once the motor reaches a certain speed, a centrifugal switch typically disconnects the auxiliary winding, allowing the motor to continue operating on the main winding alone.

This design is essential for the effective startup of split-phase motors, making the use of high current windings a fundamental aspect of their operation. The other choices do not pertain to the functioning or design of split-phase motors during startup. Low resistance coils, quick-connect switches, and gravity assists do not specifically contribute to the role of facilitating the necessary conditions for starting in this type of motor.