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| Veritasium "How Electricity Actually Works" |
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| PlainName:
--- Quote from: electrodacus on May 17, 2022, 09:05:27 pm --- --- Quote from: dunkemhigh on May 17, 2022, 08:56:37 pm --- --- Quote from: electrodacus ---It all gets down to you thinking energy pases trough a capacitor... --- End quote --- So you're agreed that energy does indeed pass through a capacitor? That 1m gap without any wires is actually allowing energy transfer through it? --- End quote --- No electrical energy is transferred through that 1m gap. There are no electrons flying from one wire to the other wire that is 1m apart. --- End quote --- Then what is the resistor burning up? |
| electrodacus:
--- Quote from: dunkemhigh on May 17, 2022, 09:36:25 pm ---Then what is the resistor burning up? --- End quote --- The resistor is in series with the capacitor so is basically a high resistance wire connecting the capacitor to the source. There are capacitors on both sides in Derek's experiment but it is no different is just electrons moving from plate of one capacitor to plate on the other capacitor so still a high resistance wire connecting the two capacitors in series. Do you agree that no electrons travels through the 1m space from one wire to the other? If you do then you must understand that no electrical energy travels through that 1m gap. |
| IanB:
--- Quote from: electrodacus on May 17, 2022, 10:26:59 pm ---If you do then you must understand that no electrical energy travels through that 1m gap. --- End quote --- If no electrical energy travels through the gap, what kind of energy does travel through the gap? What name will you give it? |
| hamster_nz:
--- Quote from: electrodacus on May 17, 2022, 10:26:59 pm --- --- Quote from: dunkemhigh on May 17, 2022, 09:36:25 pm ---Then what is the resistor burning up? --- End quote --- The resistor is in series with the capacitor so is basically a high resistance wire connecting the capacitor to the source. There are capacitors on both sides in Derek's experiment but it is no different is just electrons moving from plate of one capacitor to plate on the other capacitor so still a high resistance wire connecting the two capacitors in series. Do you agree that no electrons travels through the 1m space from one wire to the other? If you do then you must understand that no electrical energy travels through that 1m gap. --- End quote --- I agree that no electrons travel through the 1m space from one wire to the other, but it does not follow that no electrical energy travels through that 1m gap. I am sure you agree that no electrons will pass through the two capacitors either side of the LED+Resistor. However, electrical energy does pass through the capacitors, and it does light the LED. That energy is coming from the DC supply! And as pointed out before, I can replace the LED+R with a third capacitor in series, and charge the middle capacitor from the DC supply, remove it form the circuit and measure it. It does have charge (and therefore energy), even though no electrons have moved through any of the capacitors. |
| electrodacus:
--- Quote from: IanB on May 17, 2022, 10:40:34 pm --- --- Quote from: electrodacus on May 17, 2022, 10:26:59 pm ---If you do then you must understand that no electrical energy travels through that 1m gap. --- End quote --- If no electrical energy travels through the gap, what kind of energy does travel through the gap? What name will you give it? --- End quote --- If you ignore a few infrared photons then there is no energy that travels through that gap. All energy travels through wires. Here is a good video about capacitors. He should have mentioned that the initial positive charge plate that he starts with is charged relative to ground |
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