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Travel lighter with Apple's power adapter
Authored by: Superboy on Jul 07, '06 12:17:46AM

Do you mean earth or neutral? If you mean earth, then that is incorrect. The blue/black/neutral wire does not lead to earth. The neutral wire leads back to the alternator in the power station, which produces AC right from the start. it doesn't matter what way you plug the thing in, as like I said, the polarity reverses every 50th or 60th of a second anyway. They use AC because AC is needed to make transformers work properly. They need a reverse in their magnetic field in one side of the transformer to induce a current in the other. The reverse in current reverses the magnetic field.



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