All Questions
4
questions
1
vote
1
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137
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Finding free electron concentration to check authors' calculations for electron drift velocity
I am currently studying Practical Electronics for Inventors, Fourth Edition, by Scherz and Monk. Chapter 2.5.1 How the Shape of a Conductor Affects Resistance presents the following image:
I ...
26
votes
3
answers
53k
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How does data travel inside a wire?
I know this is a very basic question but the answers returned by google are way too complicated for me to understand. I am not asking about modulation here. What I want to know is what exactly is ...
9
votes
4
answers
3k
views
Flow of electrons in a wire
Electricity is "flow of electrons". My child asked me if this is so, then ultimately the copper wire should disappear/vanish/finish because the matter is moving from one place to the other. I am not ...
1
vote
3
answers
891
views
What happens to a DC current at the end of a wire?
This question might be a little more appropriate for the physics stack, but I'd like to test the water here first. I am just getting into electrical engineering, and as I go along, certain aspects ...