Magneto-restricive Delay Line
Wow! You're making me work here to "requote" your comments in quotes but, I think I've got it.
As I understand it, electrical resistance comes from two things. One is the number of electrons available for current flow (cross sectional area) and another is the length of the conductor (the cumulative impeding aspects) and the ease (or reluctance) that a material exhibits in releasing it's valence electrons.
Now, that raises yet another, related issue. There is a phenomena that applying a magnetic field to some materials doesn't change the resistance but, it does change the rate at which a signal can propagate along the material (it's called a magneto-restrictive material). I used to have a delay line that worked that way and I sure wish I knew whatever happened to it! It was really neat to play around with. I don't know that (or if) that effect changes the electron drift rate at all.
There are actaully a number of things to consider. One is the drift velocity of the electrons but, in practical circuit analysis, that's meaningless.
If thats the case how do you explain the resistance of a conductor.?
Wow! You're making me work here to "requote" your comments in quotes but, I think I've got it.
As I understand it, electrical resistance comes from two things. One is the number of electrons available for current flow (cross sectional area) and another is the length of the conductor (the cumulative impeding aspects) and the ease (or reluctance) that a material exhibits in releasing it's valence electrons.
Now, that raises yet another, related issue. There is a phenomena that applying a magnetic field to some materials doesn't change the resistance but, it does change the rate at which a signal can propagate along the material (it's called a magneto-restrictive material). I used to have a delay line that worked that way and I sure wish I knew whatever happened to it! It was really neat to play around with. I don't know that (or if) that effect changes the electron drift rate at all.
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