Easy question? Why is voltage drop proportional to current in a resistor?

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#41
Rundmaus, your description follows the classical electrodynamic explanation of what happens, however it fails to be able to explain WHY it is happening this way.

I'm not trying to be difficult or silly, but the properties of materials, and atomic particles turn out certain ways, we observe and try to define them, but this merely the state of affairs as it exists, not why it exists or why it doesn't exist in some slightly different or extremely different way. Reality as we find it.

_-_-bear

PS. ...as the OP noted "easy question..." ha ha
 
#43
Rundmaus said:
What happens in a superconductor then is that all electron pairs go into the state of lowest energy available, because the Pauli principle does no longer forbid it. From a quantum mechanical point of view, all these electron pairs can now be described as one 'large' wavefunction extending over the whole solid body. This wavefunction no longer 'sees' the small atoms and can not scatter with them. So the electron pairs move freely through the solid, there is no longer an electric resistance.

Rundmaus
Click to expand...

LOL fun comment,
It sounds like the universe is a super conductor with the planets and galaxies moving though space...ie its there but we don't interact with it..

😀<<oh its in another dimension..sorry off topic

Back to roasting 10Watt resistors..

Regards
M. Gregg
 
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#45
'Why' questions belong to theology or philosophy, not physics. One possible exception, which I personally don't believe, is that it could turn out that things are as they are because this is the only self-consistent way they could be. An alternative, which I also don't believe, is that things are very different in the other parallel universes but they are what they are in our universe simply because that is just what happens to have happened here.

Cooper pairs don't see the lattice imperfections etc. which scatter individual electrons because the pair is so large. Think of a wheel rolling on a rough surface. The bigger the wheel the smoother the ride.
 
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