What is the full form of LED?

LED stands for Light-Emitting Diode.

Short Form LED
Full Form Light-Emitting Diode
Category Academic & Science » Electronics
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What is LED?

A light-emitting diode (LED) is a semiconductor device that emits visible light when an electric current passes through it. The light is not very bright, but it is concentrated in a small area.

LEDs are used as indicator lights on many electronic devices and are increasingly used in place of traditional incandescent bulbs in household and commercial lighting.

An LED is made up of two parts: the anode and the cathode. The anode is the positive terminal and the cathode is the negative terminal. When an electric current flows through the LED, electrons flow from the cathode to the anode. This causes electrons to fall into lower energy levels, releasing energy in the form of photons (light).

The color of light emitted by an LED depends on the material used to make the semiconductor. Commonly used materials include gallium arsenide (red and green LEDs), indium arsenide (yellow and red LEDs), and aluminum gallium arsenide (blue and white LEDs).