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What Are Electrons REALLY Doing In A Wire? Quantum Physics and High School Myths
A 15-minute video by Atoms and Sporks about electrical signals and circuits and quantum foundations, on the Physics shelf. It was posted to r/engineering as “Veritasium follow-up video about electricity”. It is pitched at intermediate level.
Atoms and Sporks, Video, 15 min, 2020, on the Physics shelf
Explains electrical conduction in a metal wire through microscopic and quantum-mechanical behaviour.
Study notes
Intermediate, How it works inside. Step 4 of 6 in The physics under electronics
Helpful first
- Basic circuits
- Basic atomic model
What it builds
- Question the simple pinball picture of conducting electrons.
- Examine the history and limits of the Drude model.
- Connect microscopic electrical behaviour with quantum descriptions.
Useful moments
- 0:20The high-school pinball model
- 2:35Questioning the intuition
- 4:24The Drude model predates quantum physics
Check yourself: Which part of the classical free-electron picture needs a quantum-mechanical refinement?
Notes are based on metadata, Reddit context and selected alternate-language caption passages. They are not a review of every claim in the video.
Explains electrical conduction in a metal wire through microscopic and quantum-mechanical behaviour.
