Correct option is C
Stepper motors are widely used in applications requiring precise control of position and speed.
Cost efficient: Stepper motors are generally considered cost-efficient, especially for applications requiring precise control without the need for complex feedback systems.
No feedback: Stepper motors typically operate in open-loop mode, meaning they do not require feedback systems for position control, which simplifies their operation and reduces cost.
Highly complex circuitry: This statement is incorrect for stepper motors. One of the advantages of stepper motors is that they have relatively simple control circuitry compared to other types of motors like servo motors. The control systems for stepper motors are straightforward and do not require complex feedback mechanisms.
Almost maintenance free: Stepper motors are known for being reliable and requiring minimal maintenance, which makes them suitable for many industrial and commercial applications.
Therefore, the correct answer is Highly complex circuitry.
