# Tech A says motor action occurs through the interaction of the magnetic fields of the field coils and the armature, which causes

###### Question:

Tech A says motor action occurs through the interaction of the magnetic fields of the field coils and the armature, which causes a rotational force to act on the armature, creating the turning motion. Tech B says two magnetic fields are required for motor action: one in the casing and the other in the rotating armature. Who is correct

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