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
The difference in voltage between the wires powers your device, and as this difference reverses many times per second, it’s the same either way.
Only in case of an electrical fault (exposing the device’s energized components to an outside object or person) does it matter which is which.
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