Why is it safe to use two-pin plugs (Eg. Most mobile chargers) even upside down, when live and neutral wires are switched? How does the charging still work fine?
In: Engineering
Most of those devices have an AC to DC converted and unpolarized capacitors in their circuitry. Its like all the streets in the circuit are two way.
When you can’t reverse the plug (switch the polarity) it indicates the circuitry has some one way streets (polarized components–usually capacitors).
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