Fuzzy feeling from laptop lid

SimonH2 said:
No, it's connected to the mains, one side of which is earthed. The filters and parasitic capacitance will generally pull the secondary side (output) towards half the mains voltage (i.e. 120V for us) relative to esrth.
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Correct!

It's near impossible, in most built-up areas, to not be able to detect the 50Hz of the mains frequency.
 
I don‘t know about the current UK ones but the older duckheads had a plastic pin while the longer leads had an earthed plug.
 
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