In electrical terms, what is a lamp?

In electrical terms, what is a lamp?

• A. A device that stores energy
• B. A device that measures resistance
• C. A device that converts electrical energy into light
• D. A device that blocks current

Answer: (C)

A lamp is a device that converts electrical energy into light (and some heat). In incandescent lamps the current heats a filament until it glows, while in LED lamps the energy is converted directly into light through electroluminescence. It isn’t for storing energy, measuring resistance, or blocking current; instead, it uses the electrical energy it receives to emit light.

A lamp is a device that converts electrical energy into light (and some heat). In incandescent lamps the current heats a filament until it glows, while in LED lamps the energy is converted directly into light through electroluminescence. It isn’t for storing energy, measuring resistance, or blocking current; instead, it uses the electrical energy it receives to emit light.