Nihad Nazmul
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Can I say that energy transmitted in DC by electrons flow like ants walking align and in AC by electron vibration like water wave ?
Pictorial models of something as complicated as Electricity will just manage to confuse you. There is no short cut to understanding Electricity. One thing I can tell you is that using electrons when you want to describe what goes on in circuits is worse than unnecessary. Going back a few decades, schools taught electricity without introducing electrons (despite the fact that it was know how they are 'involved'; that is night here nor there.) We had no trouble in our electrical learning. Most of the electrical devices that you use were designed without using 'electrons' in the analysis. That goes for generators, radio antennas and motors, to name but three)Nihad Nazmul said:Can I say that energy transmitted in DC by electrons flow like ants walking align and in AC by electron vibration like water wave ?
Drakkith said:In both AC and DC the energy is transferred through the electromagnetic field.
Yes.Drakkith said:Are you talking about what is known as 'conventional current' where current flow is envisioned as positive charges flowing?
Nihad Nazmul said:Maybe I messed up energy and current together. Now I have the conclusion. Glowing a light bulb current has no role and it is done by electromagnetic magnetic field .
Nihad Nazmul said:Maybe I messed up energy and current together. Now I have the conclusion. Glowing a light bulb current has no role and it is done by electromagnetic magnetic field .
This is a problem that many people have but it is not a real problem. The Conventional Current was a concept which was used long before anyone had an idea of the existence of electrons. Electric current was just some quantity - a substance, of a sort, that could (and still can) be treated as a fluid that flows according to Potential difference ('downhill'). Someone chose a Sign for the connections on a standard battery (or on a piece of insulator that had been rubbed with something) and that choice was adopted universally and classical electromagnetic theory was developed using this convention. It is all perfectly consistent, with Current flowing from + to -. A long time later, the particle that conveys charge in metals were discovered- the electron. You can just accept this and there is no problem with the fact that these charge carriers happen to have a negative charge. Negative charges flowing one way will correspond to the positive charges flowing the other way. (If you look at solid state Physics, you can have electrons flowing one way and holes flowing the other - that's fine. Also you could imaging positrons flowing in a 'wire' made up of 'Anticopper' and then students would have no problem. (Ignore the practical problem of actually producing a wire of Anticopper!)Nihad Nazmul said:I will never ever use the word "photon" rather electromagnetic field. Okay, now come to my problem "I couldn't specify one thing that why electrons and current ( flow of electromagnetic field) flow inverse ? Perhaps I've got a reason . That direction of electric field and its push that means force is inverse, the equation F=(-e)E is the precision. " There may have more reason for this .
It is not a 'quantum jump" as in the Bohr atom because it is happening in condensed matter and not just a single atom. I really think you should read (or re-read) a decent textbook, now that you have a number of correct ideas about all this. Your problem is that you are not joining them up in a coherent way. Asking a whole random selection of questions is not the best way to get on top of this. You need a structure for your knowledge and one cannot build one on ones own (unless one is exceptionally gifted - like Max Planck). I have a feeling that, even if you were to get answers to this particular list of questions, you would simply come up with another set. Try to approach this in the conventional way and it will deal with questions, one at a time, and in a formal way. It really does work very well for other people, you know.Nihad Nazmul said:Bohr's quantum jump
As Drakkith said, the field transports the energy. Are you familiar with the Poynting vector and Poynting's theorem? I think that would be the next thing for you to explore.Nihad Nazmul said:But what is the role of electromagnetic field?
In other words, an electrical energy is transported through the insulators, not through the conductors. Quite shocking but trueDaleSpam said:In an AC or DC circuit, such as those you find in residential wiring or household appliances, energy is not transported by the current inside the wires. Instead, energy is transported by the fields outside the wire.