 
 <prompt> Wetin be di fourth word for di first paragraph? Based on di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: Stepper motors na di kind motor wey dem dey use well well wen dem need precise rotations. For inside stepper motor, one internal rotor wey get PMs or magnetically soft rotor with salient poles dey controlled by one set of external magnets wey dem dey switch electronically. You fit see stepper motor as one kind mix between DC electric motor and rotary solenoid. As each coil dey energized one by one, di rotor go align itself with di magnetic field wey di energized field winding dey produce. Unlike synchronous motor, for its application, stepper motor fit no dey rotate continuously; instead, e dey "step"—e dey start and den quickly stop again—from one position go di next as field windings dey energized and de-energized for sequence. Depending on di sequence, di rotor fit turn front or back, and e fit change direction, stop, speed up or slow down anyhow at any time. 