Electrodacus has agreed that there is power available to do work in the return circuit. And that this current flowed in and out of the capacitor terminals. As to whether this power went "through" the capacitor i guess we will never agree.
Am I correct ?
For me the question is entirely about DC and energy inside vs outside the wire. Nothing to do with switches, transmission lines, capacitors, inductors, transformer theory, antenna theory etc etc.
Which begs the question, is really such a thing as DC? For practical purposes we treat DC as a current that has existed since before the beginning of the universe and will last forever, but in reality whatever the current, it started at some definite point in time in the past and will stop in a foreseeable future. So, what we call DC is in fact just a very wide rectangular pulse. It is essentially transient as anything else, because impermanence seems to be the norm in nature.
If that is so, Heaviside must have thought that, well, if whatever rectangular pulse sent through a transmission line seems to show that energy is conveyed through the space between the wires, why not DC?
What happens to the energy when you charge a capacitor, then move the plates apart?
What about when charging an inductor?
Can energy (or power) at an appropriate frequency propagate down a waveguide, inside the metal walls?
We are getting way out of subject.
Nothing moves in Derke's experiment.
We have a long transmission line that is charged during transient thus the energy seen through lamp that is in series with the charging capacitors.
Energy flows in capacitors and not through capacitors. Energy flows through wires and resistors (that are also wires).
In Derek's experiment, energy or power reached the load before any electrical signals had time to propagate down the wires. Therefore, by experiment, it is proven that energy reached the load by some other path than through the wires.
Whether you like that result or not is irrelevant. The experiment stands. You may wish to come up with your private explanation for that result, and the rest of us may wish to adopt a different explanation. That is OK, but do not expect to persuade anyone to accept your view unless it conforms with the regularly understood laws of physics.
If you write words that agree with the textbooks, then you are wasting your time because we can all read the textbooks.
If you write words that disagree with the textbooks, then you are wasting your time because you won't convince anyone else and apparently you don't wish to learn.
Either way, you are wasting your time posting.
""Many of you mentioned the displacement current but that is a mathematical concept so the equations work not a real current.""
Yes it is a real current.
In a parallel plate capacitor when charge accumulates on one plate the rising electric field ( result of the charge accumulation ) causes charge to leave the other plate (if there is a return path)
This is exactly the mechanism of displacement current. It requires a continuous charge buildup between the plates and this is current entering / leaving the plates.
http://teacher.pas.rochester.edu/phy122/lecture_notes/Chapter35/chapter35.html
Those 72mJ did not pass through the 1000uF capacitor but in to it and will remain there as stored energy.
288mJ will end up dissipated as heat in the wires.
Where in the capacitor is the energy stored? What is it's physical location?
I believe you have said that this heat energy is radiated away in the form of infrared radiation. What is the difference between infrared radiation and radio waves?
Can energy (or power) at an appropriate frequency propagate down a waveguide, inside the metal walls?
Where in the capacitor is the energy stored? What is it's physical location?I believe you have said that this heat energy is radiated away in the form of infrared radiation. What is the difference between infrared radiation and radio waves?
Can energy (or power) at an appropriate frequency propagate down a waveguide, inside the metal walls?Yes.
You didn't answer either question. Are you saying there is no physical location?
You didn't answer the second question at all either.
Do you know what a discussion is?
Have I not mentioned electrons that are a physical particle and they have a charge.
It is almost like you are denying that capacitors are an energy storage device.
We are discussing electrical energy not thermal energy.
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Radio waves are on the other side of the infrared closer to DC.
Have I not mentioned electrons that are a physical particle and they have a charge.
It is almost like you are denying that capacitors are an energy storage device.So charge equates to energy?QuoteWe are discussing electrical energy not thermal energy.
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Radio waves are on the other side of the infrared closer to DC.I sense a contradiction. Sounds like infrared and radio waves are both in the realm of electrical energy.
Can energy (or power) at an appropriate frequency propagate down a waveguide, inside the metal walls?Yes.Is it a trick question? Inside ..
Can energy (or power) at an appropriate frequency propagate down a waveguide, inside the metal walls?Yes.Is it a trick question? Inside ..I think it was, but a correct answer is that current/energy is propagating inside the metal walls. Now the skin depth is typically very small, but it's still inside.