In electrical terms, what is a device that uses energy to perform work, like a bell or bulb called?

A device that uses energy to perform work, such as a bell or a bulb, is referred to as a load. In electrical circuits, the term "load" specifically describes components that consume electrical energy to produce a desired effect. When electricity flows through these devices, they utilize the energy for various purposes, whether it's lighting a bulb, producing sound from a bell, or driving a motor.

The concept of a load is central in understanding how electrical systems operate, as it indicates where the energy is being used within a circuit. Loads can be simple devices like light bulbs or more complex machinery, and they always require a certain amount of power to function. This makes the term "load" fitting for devices that transform electrical energy into other forms of energy, such as light, sound, or motion.