eli5: Why is there a tiny spark sometimes when plugging into an outlet?
In: Physics
That an electrical arc. That will only happen if there is something inside the unit that comes on instantly. Like a little light or if it’s meant to come on just by plugging it in. You can also leave some thing that uses a lot of electricity on and then just unplug it and see a large arc. The size of the arc is depending on how much electricity is being used
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