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Month: November 2024

Photo Diode (Note)

The photo diode is a semiconductor device which converts the incident light into electrical current. Their application includes optical communication system, television, remote control, etc. On this symbol, there is two arrow comming into the diode, it indicates that whenever the light falls on this diode, then it generate the photo current. Unlike the normal […]

Light Emitting Diode (LED) Note

Applications of LED: Advantages of LED LED LED is a P-N junction diode, whenever the current flows through it in the forward direction, it emits light of a particular color. This process of giving off light when applying electrical energy is known as electroluminance. When the diode is forward-biased, the holes in the P side […]

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