Exactly as stated in the title. All my life I’ve been able to touch my phone or computer’s electrical charger output (accidentally or for whatever the reason) with no sort of “buzz” or feeling from the electricity going through the output. At least that has always been my experience with it.
Just in case: Don’t intentionally try this of course.
In: 64
ELI5 oversimplified, most of it wrong for demonstrative purposes
There are 3 things we need to look at when we talk about electricity.
* Voltage – The willingness of the electricity to go from point A to B
* Amperage – The amont of electricity flowing
* Resistance – is well the resistance of something against the flow of electricity. This fights against voltage
Electricity always want to flow from where there is more of it to the point where is less.
For the “buzz” to occur you need to have enough Voltage to overcome the resistance enough so that the amperage could flow
Your skin has pretty high reistance, an USB charger doesn’t have enough voltage to overcome it. But an electrical socket has more and that is dangerous.
Also you could try if you have a 9V battery. if you press it on your skin, nothing happens. But if you lick it, your moist tongue has much less resistance and there is gonna be a buzz.
If you lick a 5V charger there should be a metallic taste with a tiny buzzing.
DISCLAIMER: ALWAYS BE CAREFUL WITH CHARGERS PLUGGED DIRECTLY TO A WALL OUTLET.
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