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...an *added* coil would introduce additional DC-resistance which would consume even MORE power.
...you cannot "step-up" DC-voltage, as from a car battery, using a coil.
...you need either AC-voltage and a transformer, or a "switching" coil-capacitor (LC) network and circuitry (like switching power supplies).
Last edited by gone-ot; 03-30-2010 at 10:57 PM..
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