Learn in the textbookActuators and Device Control
DefinitionA DC motor (DCモーター) is a motor whose shaft rotates when direct current flows through it, and it is a typical example of an electrically driven actuator.
ExplanationRaising or lowering the applied voltage changes the speed, and reversing the current makes it spin the other way. Because it can even run on batteries, it is widely used in models, small home appliances, robot joints, and the like.
AnalogyIt is like the heart of a toy car, which starts spinning as soon as you hook up a battery.
Memory hookDC stands for Direct Current, while the alternating current from a household outlet is written AC (Alternating Current).