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Results tagged with joule-thief
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user 4327
voltage boosting circuit.
36
votes
Why can't I light a LED with a 1.5 V battery?
Physics explanation
Light bulbs
Incandescent light isn't really a light source so much as a heating element. Any current through a wire heats it up a bit (Joule's Law of Heating); once the wire is abo …
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