Whenever the armature of an electric motor is moving, both the motor action and generator action are occurring simultaneously; the electromagnetic force produced by generator action opposes the desired motor action and effectively creates a variable motor resistance which increases with motor speed. When a voltage is applied to the motor, this resistance dictates the current drawn by the motor.
Whenever the armature of an electric motor is in motion, both motor action and generator action take place concurrently; the electromagnetic force generated by generator action counteracts the desired motor action and creates a variable motor resistance that increases with motor speed. When voltage is applied to the motor, this resistance determines the current drawn by the motor.