Charged my smartphone on a wireless charger and I’m convinced it is black magic or witchcraft. It barely charged (sitting for 4 hours, only went up by 10%.) I assume it has something to do with electrons…
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Electricity can produce electromagnetic fields which in turn, induce an electrical current in a nearby conductor. Transformers (such as the step-down transformers that go from 120 V AC to 24 V AC for your thermostat) work the same way. There isn’t a direct physical connection between your 120 V wiring and your 24 V wiring in your furnace.
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