Assertion: motor's electromagnet | /r/CapableOf | create torque
Facets:
value: in one direction
type: LOCATION
Source sentences:
text: An electronic sensor detects the angle of the rotor, and controls semiconductor switches such as transistors which switch current through the windings, either reversing the direction of the current or in some motors turning it off, at the correct time each 180° shaft rotation so the electromagnets create a torque in one direction.