All Questions
23
questions
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Maximum mean distance electrons can travel in ballistic conduction?
How far in mean distance can electrons reasonably travel via ballistic conduction according to the current model and what is the current mean or average distance or length record for ballistic ...
0
votes
3
answers
84
views
About lightning and lightning conductor
Lightning not only strikes on a lightning conductor installed on the building... Lightning can strike anywhere on the surface roof of the building even though that building has installed a lightning ...
- 31
-1
votes
1
answer
86
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Does The electron get absorbed by nucleus in a conductor when they collide with the atoms [duplicate]
If my question is incorrect then please also mention the correct thing which happens to them.
2
votes
1
answer
201
views
When you introduce excess charge into an insulator the charge stays still. Why is this?
When you add charge to an insulator the electrons stay in the same place whereas in a conductor they spread apart. Why is this? What force is making the excess charge stay in one place in an insulator?...
- 143
3
votes
4
answers
3k
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In metals, the conductivity decreases with increasing temperature?
I am currently studying Principles of Optics: Electromagnetic Theory of Propagation, Interference and Diffraction of Light, 7th edition, by Max Born and Emil Wolf. Chapter 1.1.2 Material equations ...
- 889
0
votes
1
answer
121
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When AC electricity is generated, how does the current flow? [duplicate]
I have read multiple different versions of how AC current flows in our power lines. How does the current flow? Is the energy just photonics waves passing through electrons that vibrate or are ...
- 1
1
vote
1
answer
503
views
Can metal or carbon vapour conduct electricity?
Not a duplicate of Can Gases conduct Electricity, since it asks about ionised gases, which is irrelevant to my question.
This is what I already know:
All metals have a giant metal lattice, where ...
- 148
5
votes
6
answers
1k
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What is the exact mechanism of flow of electricity? [duplicate]
When a steady current
flows through a conductor, the electrons in it move with a certain average ‘drift speed’.
One can calculate this drift speed of electrons for a typical copper wire carrying a
...
user223406
0
votes
1
answer
66
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Mechanism of electricity in conductors
In mechanism of electricity in conductors my teacher said the free electrons collide with positive lattice and this positive lattice is oscillating about its mean position. Ok for producing current ...
- 35
0
votes
1
answer
89
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Is the speed at which electrons move through a conducting wire binary?
If a voltage differential causes electrons to move through a conducting wire, and no other forces are acting against them, will they always move at the highest possible speed through that material?
...
0
votes
1
answer
197
views
What is electric current? [closed]
I have been reading a book about electricity which states that: electric current is not the movement of electrons but the "impulse generated when free electrons orderly "jump" from one atom to the ...
- 11
3
votes
2
answers
1k
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How is the speed of electricity determined?
Before I am told this is a duplicate, I'd like to be specific here. I have searched online for an answer regarding the speed of electricity in general and haven't found what I'm looking for. Even in ...
5
votes
2
answers
695
views
Why do electrons follow the conductors shape?
I'm stuck thinking about this situation. I imagine that there are two oppositely charged objects at short distance $r$, put inside an insulator (Can I say air?). They generate a net elctric field, ...
12
votes
2
answers
16k
views
Where do all these electrons come from? [duplicate]
I'm a high school student and I'm fairly familiar with basic electronics, but I've always wondered one thing.
So how generators make electricity from motion is the move a magnet around or through a ...
- 919
3
votes
1
answer
525
views
How do electrons move at an atomic level? [duplicate]
This was meant to be a sub question in the comments of my last question but I think it is big enough to have its own post.
I know that electrons move because of the potential difference across the ...
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