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| Veritasium "How Electricity Actually Works" |
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| PlainName:
--- Quote from: electrodacus on May 19, 2022, 12:55:28 am --- --- Quote from: dunkemhigh on May 19, 2022, 12:47:36 am --- Just one more time: is there or is there not an air gap between the energy source and the energy consumer? That is the question I am asking. I am not asking the question you would prefer to think I should ask, I am asking this specific and very simple one. Are you afraid to answer it or what? Well, no matter, because this is why we don't get anywhere, and it is why I am done with you. --- End quote --- Yes there is a an air gap. Now you answer this simple question. Is there any electric current passing through this gap ? If you say no then you also say no to there is no energy delivered through that gap and all energy travels in wire. --- End quote --- Thank you! Your question: I don't know. That's what we are ultimately trying to determine, but at this point all we know is that there is an energy transfer. What form that energy takes is something to be figured out. Hopefully you now agree there is energy transfer across that gap. If not, how can one side insert some and the other side use some? We are still not talking about how it transfers, only that there is a transfer. |
| hamster_nz:
--- Quote from: electrodacus on May 19, 2022, 03:48:23 am ---Assuming you had 5V supply the entire circuit should have had 5Ohm for 1A to flow through it so that 1m of wire is just a part of the total circuit. --- End quote --- So you will agree for the attached schematic, that the instant that SW1 is closed, the initial voltage over R1 will be 5V and 1A will be flowing through it? (and of course it will fall away as the capacitors charge) And by integrating the V*A over time in the resistor we can find out how much energy has been transferred from the battery to the resistor, because of the connecting wires, switch and capacitors? How does that energy get there, as you say energy only flows in wires and not through a capacitor? --- Quote ---...and since electron flow is electrical current and electrical current multiplied with voltage is power and power integrated over time is energy it means energy flows only in wire. --- End quote --- |
| HuronKing:
--- Quote from: electrodacus on May 18, 2022, 11:59:15 pm ---You will need to understand Maxwell's equations to understand what they say. They do not say energy flows outside the wires. --- End quote --- They absolutely say that. That's what led Maxwell to unify the electric and magnetic fields into electromagnetism... and it's what led Hertz to try transmitting an electrical signal from one radiator to another without any wires whatsoever. This statement of yours earlier in the thread, --- Quote ---So to transport electrical energy from one plate to another you need electron flow --- End quote --- is absolutely wrong. You seem to believe the only kind of current that exists is conduction current and that only this current transmits energy and the only way for energy to get from one plate to another is if an electron, somehow, crosses the gap. No. No. NO! Do you know the difference between conduction current and displacement current? You can start here: https://youtu.be/SS4tcajTsW8?t=1157 |
| HuronKing:
--- Quote from: electrodacus on May 19, 2022, 12:55:28 am ---Now you answer this simple question. Is there any electric current passing through this gap ? If you say no then you also say no to there is no energy delivered through that gap and all energy travels in wire. --- End quote --- Don't anyone fall for this question. It's a trick question. He wants you to believe that if conduction current isn't flowing through the gap then no energy is flowing through the gap. This is against Ampere's Law with Maxwell's addition of Displacement Current. This statement would get an F in any basic physics course. |
| HuronKing:
Sorry be posting 3 comments in a row but enough nonsense has been perpetrated here about conduction current being the only way that energy can move from A to B in space. Here is a very simple experiment measuring displacement current as equal to the conduction current but there are NO electrons moving across any gaps whatsoever: |
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