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40W Bluetooth Portable Speaker (Improved Version!)
"when a coiled cable has a load it causes inductance. This can cause a build up of heat."I'm sorry, that's incorrect. Electrical heating is caused only by resistive (I^2 * R) power conversion, not by inductance. Inductance alone causes an induced AC voltage drop across the coil proportional to the AC current and the inductance, but not heating. The current and induced voltage are out of phase with each other and therefore no power conversion occurs.
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