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Engineering
Electrical Engineering
Do concentric coils steal power from one another?
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[QUOTE="Tom.G, post: 6519465, member: 581973"] You are good until the <total current drawn> times the <number of turns> creates a magnetic that is high enough to cancel the field from the magnet. Also, as you draw more current (power), it gets more difficult to move the magnet in relation to the coil(s) (or the coils in relation to the magnet). This is because the electrical power is supplied by the mechanical power. Bicycles used to have a headlight powered by a generator driven by the front wheel. You could definitely feel the harder pedaling required with the headlight on! You can sometimes notice this in a car that is idling. Try it with the headlights Off then On, the idle speed changes. (This works at least in older cars, the computer in the newer cars keeps the idle speed constant. The sound of the engine may change in newer cars, especially those with a small engine.) Cheers, Tom [/QUOTE]
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Electrical Engineering
Do concentric coils steal power from one another?
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