Assertion: motor's direction | /r/HasProperty | reversed with every 180° turn of the rotor
Facets:
value: in order to create torque
type: PURPOSE
value: in a dc motor
type: OTHER
Source sentences:
text: Therefore, in a DC motor, in order to create torque in one direction, the direction of electric current through the windings must be reversed with every 180° turn of the rotor (or turned off during the time that it is in the wrong direction).