Q&A/Class 8/Science

Explain the functioning of a LED.

Class 8CBSEScienceChapter: Chemical Effects of Electric Current
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LED stands for Light emitting diode. It is a semiconductor light source, use to detect weak current in the circuit. There are two wires attached to a LED, one lead is slightly longer than the another one, the longer lead is always connected to the positive terminal of battery and shorter lead is connected to negative terminal of battery

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