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LED testing with fingers?
I seem to remember one can hold an LED, each lead between the fingers and it will light up? Is that so, and if so, then how much voltage is that in an LED? What is the maximum amount of voltage that can come in this way from the fingers to conplete a circuit, say for a continuity tester? Do LED's come in different voltages?
1 Answer
- 1 decade agoFavorite Answer
If you saw that in a video on Youtube, it was fake (quite a few videos are fake)
LEDs, depending on color, do have different voltage requirements, from something like 1.7V to around 3V, but your finger are not going to generate any voltage.
If you are in an area where the humidity is low enough to get a static shock when, say, shuffling your feet on a carpet, you can make a small neon bulb flash, but that will by holding only one lead and touching the other to a grounded object. Small neon bulbs need somewhere around 60V to start glowing, but the static build up can be thousands of volts.