Question

what is LED? .........​

Answer 1

In the simplest terms, a light-emitting diode (LED) is a semiconductor device that emits light when an electric current is passed through it. ... Since light is generated within the solid semiconductor material, LEDs are described as solid-state devices.

Answer 2

A light-emitting diode (LED) is a semiconductor device that emits light when an electric current is passed through it.

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