How electrons act under rotating magnetic field?

[propelera]

I study Power Engineering in University. Today I asked my lecturer to explain me exactly how atom's electrons act under spinning rotor's magnetic field, that generated dynamic electricity. But he even didn't gave me to finish my question and said : "Explaining it to you is useless, you are not capable of understanding it". I felt very angry hearing these words, like I was an idiot. So I have some thoughts about electrons behavior under spinning rotor's magnetic field and I want your answer, is this theory correct and if it's not than why?
here is my theory:
Consider this is simple atom:


When magnetic field cross atoms, if magnet's north side (+) is near to this atom the center of electron's path (gray circle) will not be on the center of nuclear, it will move toward magnet, because magnet has north side (+) and electron has (-) potential. As I believe the Voltage (U) is distance between center of nuclear and the center of electron's path. And the number of these atoms make amps.


That's why increasing rotor's magnetic field makes more voltage, and that's why air's ionization happens around high voltage wires (voltage like: 220 kv, 500 kv). Nuclear has not enough power hold electron and so this electron moves to new air's nuclear. I think that also explains why Current and Voltage are 90 degrees out of phase.
Please read my theory and tell me I am right or not, I really want to understand how this everything is done.
Also my lecturer told me that every information I can find on internet is written by fools and foolers are reading them. So I want to tell him that he is WRONG!!!

 

[propelera]

Guys, I posted this question on physics.stackexchange.com and got an interesting answer:

"leftaroundabout" wrote:

Well, your lecturer certainly shouldn't have put it like this, however it's true that you have got a lot wrong here. It's stuff you definitely will need to understand better if you're studying power engineering.
First, you seem to think that electrons are attracted by magnetic north poles. They aren't; in fact stationary charges and magnetic fields aren't concerned with each other in any way at all[SUP]1[/SUP]!
Next, you're talking about electrons in circular orbits about the nucleus. That's roughly the Bohr model which kind-of-sort-of-works, but not really. You want to familiarise yourself to the orbital model which describes very well how bound electrons actually behave.
Even in an orbital, you might be inclined to talk about "the nucleus is off the center by a distance proportional to the voltage". That's again kind-of-sort-of-right since the nucleus lies in a locally-harmonic potential which can be read as "pertubation by an electric field (which in a fixed capacitor is proportional to the voltage) will cause a proportional displacement of the nucleus", but the way you phrase it it's still nonsense. Voltage "is" not a distance, it's a potential (i.e. energy).
Anyway, this isn't actually relevant to understanding rotating-magnet phenomena, i.e. inductance in coils. These are concerned only with conduction electrons, which aren't bound to any particular atom at all but "move" through the entire conductor, which is why there can be currents. It is these moving electrons that experience a significant force in the presence of a magnetic field. What current actually is is the number and "speed" with which these electrons move through the conductor, while even a strong displacement of the bound (valence) electrons would not consolidate a current[SUP]2[/SUP].

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[SUP]1[/SUP]Actually, electrons are also small magnets themselves (they have an instrisic quantum-mechanical spin) and therefore are attracted to inhomogenic magnetic fields, but that's quite another issue.
[SUP]2[/SUP]Actually, they would... but that's mostly relevant in the high-frequency-regime, i.e. bound electrons that jiggle back and forth very quickly.

The link to my post: physics.stackexchange.com/questions/59523/how-electrons-act-under-rotating-magnetic-field/59534?noredirect=1#59534

 

[Des 56]

Thank all of you guys for response. So am I right or wrong? If I am wrong than I really don't understand (I have learn't that, but could not UNDERSTAND) how rotating magnetic field makes electricity, and what connections do Voltage, Amps and Currency has. Again I have learnt the formulas, but only formulas didn't gave me the DEEP UNDERSTANDING. Can you link me to the articles where I can find more information about how voltage, amps and currency is connected deeply in atomic level?

how rotating magnetic field makes electricity
The magnetic field passes through the conductor,or vice versa


and what connections do Voltage, Amps and Currency has.
Voltage or potential difference causes the loose electrons to flow ,higher PD is needed for the tighter bound stubborn little beggars who take some shifting

Currency is what we lack in Wales,there is a higher flow of currency in Reigate than most other parts

 

[Silly Sausage]

to prop's last post, Exactly!

 

[GLENNSPARK]

The truth is prop, is that nobody really knows why, there are many things that you have to accept as 'Because it does!!!'
The deeper you dig down, the conceptual difficulty rises exponentially! Hope you're good at Maths if you want to carry on.

said the local vicar to the yokels...

 

[Knobhead]

Things could get worse, it's DIY weekend

 

[Des 56]

ha ha very good

Aint it good when you don't see the "punchline" coming

 

[Silly Sausage]

said the local vicar to the yokels...

Or as when I said to my Priest, 'Why does it hurt?', 'Because it's meant to'

 

[GLENNSPARK]

Or as when I said to my Priest, 'Why does it hurt?', 'Because it's meant to'

never mind...new pope...all`s forgiven

 

[44ALLAN]

to prop's last post, Exactly!

I'm not happy he quoted me ( leftaroundabout) here without my permission but what the heck eh!!

 

[grantr37]

I wouldn't try to explain it as it would take me about 8 hours to fully do so, and your lecturer would take 3 or 4 hours to explain it to you as they are(mostly)better at explaining things than me....
Ask on a particle physics forum and they will give you some of the information, ask on a specialist radio forum and they will give you the rest on electromagnetic propagation, you may also want to ask somebody at the chemistry department about electrochemistry as well, this area of science encompasses everything that is outside free space propagation(Magnetism with resultant mutual inductance in "free space")

by rotating magnetic field what you mean is cycling(oscillating intensity) magnetic flux density with angular rotation around a fixed point in free space containing a permissive material(conductor) such as within the windings of an alternator...and not a high frequency magnetic roto-impulse for example within a cyclatron based accelerator ? you did not ask your lecturer the correct question in the correct way and this will have annoyed them...there are many different areas of science involved in the interaction of electrons....


Your interest in rotating magnetic fields relates to the generation of Electrical energy by the imparting of magnetic impulse on a conductor, an example of this being within the windings of an Alternator (transfer coil) in an Electricity Generator, the windings of the coil(s) are in effect straight conductors arranged into overlapping linear patterns in such a way as to cross the planar of the magnetic field source (fixed or electromagnet) in an efficient enough manner to transfer kinetic energy into converted form (electrical energy) and the only stable way to do this(at present) is via angular rotation(rotating through a 360 degree circle around a fixed point), it is this angular rotation of the magnetic field through a suitable permissive medium (such as copper,iron or some rare earth metals) that leads to cycling (rotating) flux density and effectively "pushes" electrons out of the conductor in the opposite direction to that of the rotation(the same as moving a fixed magnet by hand along a length of suitably efficient conductor either in linear form( a single length) or as a winding(more efficient linear"condenser"arrangement-a longer length in the same sweep area), this happens continuously around 180degrees of axis before reversing(alternating), the flow of electrons increases with frequency up to a maximum defined by the cross sectional area of the individual conductors(combined) and the magnetic permeability of the material, as a matter of interest this can be altered (within bounds) by temperature differentials in line with the freedom with which electrons transfer between atoms (electrical conductivity/resistance) an example of such would be superconducting rare earth metals at ultra low temperatures delivering a high density magnetic field......or a ferrous(iron) fixed magnet losing the ability to impart a magnetic field(losing it's magnetism/magnetic grip) at high temperatures an example being a toy with a magnet placed beside a heater "losing it's grip".....


in basic terms, electromagnetic energy (radio waves, moving magnetic fields-such as those created by a spinning/rotating magnet) cause electrons to "skip" off of the conductor atoms and this (flow)happens in the opposite direction to that of the magnetic impulse (wave movement) so that an increasing and decreasing magnetic field has a push-pull effect (Flemming's right hand) and this creates alternating current...

The alignment follows the direction of the magnetic impulse, whether it(magnetic flux) be expanding (saturating) or collapsing (tranferring/deminishing)


the interaction of materials and electrons is an area which most Electrical students do not enquire about and normally take as "knowns" with materials scientists and mainly chemical companies having an interest in metalurgical(conductor) and semiconductor production,etc...

many non magnetic materials (compounds) conduct electricity but do not freely give up electrons when subjected to magnetic fields, instead the magnetism propagates(passes through) them, also non conducting materials allow the transfer of electromagnetic energy,this is why data cables require screening to remove what is classed as interference which passes through the sleeve/cover and interacts with the conductors....

Propagation through free space(air/atmosphere or vaccum) is what allows for radio transmission, propagation through non-conducting materials is useful in isolating transformers etc where the magnetic field is not rotating as such but is expanding and collapsing sweeping through the coils and displacing electrons in alternating directions...

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*double post removed, appeared due to internet problem*

 

[Silly Sausage]

I hope you cut & pasted that lot grant!
I remember be taught how light propagates through space, the electric field produces the magnetic field, which produces the electric field, which .....................fascinating stuff!

 

[grantr37]

typed :stuart:

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been up since 3:50Am this morning ...

 

[grantr37]

not really something worth thinking about for an Electrical student....more a physics student or a chemistry student looking into metulergy...

 

[Silly Sausage]

typed :stuart:

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been up since 3:50Am this morning ...

You need to work on your typing speed!

 

[Toonlad]

This goose has never been so gandered