Comments by "GH1618" (@GH-oi2jf) on "What is CURRENT– electric current explained, electricity basics" video.

  1. The electrons in an AC circuit are not just vibrating. They do move from one atom to another, just not as far in half a cycle as one might imagine.
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  2. Electrons actually move, but not as much as you might expect. There are vast numbers of electrons, and when they move they create magnetic force. It’s complex. It isn’t necessary to understand the physics in order to understand electricity. We use a simpler model in practical electricity.
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  3. When you touch a hot wire, you are placing your resistance in parallel to the load.
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  4. It’s 3A, not 3V.
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  5. It’s the Amperes you have to worry about, not the Volts.
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  6.  @delanamanuel1451  — No, when you add lamps in parallel, the resistance drops and the current increases.
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  7. correct. He also misstated Coulomb.
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  8. It is easier than that. You are at the right age to start learning practical electricity.
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  9. That is correct for “conventional” current. The early scientists who studied electricity named it before the electron was discovered and understood.
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  10. Heat blows the fuse, but everything is related. The fuse has a carefully calibrated resistance. As the resistance of the load decreases (by adding more lamps in parallel), the current of the whole circuit increases and the voltage drop across the fuse increases (because it becomes a larger fraction of the circuit resistance). But it is the current in the resistance of the fuse that generates heat according to the I^2 * R rule.
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  11. Copper is anomolous. The stable configuration is actually …3d10 4s1.
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  12. Parallel resistance is like adding another driving lane to a road. There is more room to carry traffic.
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  13. He misspoke. It was DC to AC.
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  14. There is a circuit of conductors, from a generator through a wire to a load, then through another wire back to the generator. The generator applies a force to the electrons in the wire of the generator and the force propagates around the circuit.
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  15. “Pressure” is not a useful term here. It is better to stick to electrical terminology.
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  16. It’s 2A, not 2V.
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  17. Two 1-ohm loads in parallel is a .5-ohm load. Divide the voltage (1.5) by .5 ohms to get 3 Amperes.
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  18. I’d like to know where you got that 70%.
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