How Wrong Is Veritasium? A Lamp and Power Line Story [video]
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The battery in your cell phone right now is in some non-zero way also powering the lights in your room. Each keypress on your keyboard registers in the heater of your neighbors coffee machine. They're all part of the same singular universal circuit.
Veritasium just ran with this pedantic tidbit to make a flashy controversial video. Which he didn't even get fully right because like Electro pointed out, there is always non-zero current flowing in everything. The lamp never "turns on" because it always was "on".
As an electronics guy, the veritasium video just made my eyes roll.
btw my favorite, most illuminating source of electrical knowledge is the book “There Are No Electrons: Electronics for Earthlings”