Assertion: motor's speed | /r/HasProperty | varied
Facets:
value: by pressing the pwm switch
type: MANNER
Source sentences:
text: The speed of the motor is varied by adjusting the timing of pulses of current delivered to the several windings of the motor.
text: The speed of the motor can be varied by pressing the PWM switch, causing an application of pulses of varying duration to the enable pin of the driver IC, thus varying the applied voltage.