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The second link is pretty good - comprehensive. It talks about the 'conventional current' and the direction of flow of the electrons. People ask why the two do not agree. The reason is that they decided (arbitrarily) to put a + sign on the first battery long before anyone had discovered the electron and actually how current is carried in wires. Having done that, they were stuck with it. It would have made life so much easier for every student if they had chosen things the other way round. I recommend never thinking about the electrons when you do ordinary circuit problems; there is seldom any point and you can get mixed up if you are not careful.
My thought is that atom-theory dont tell us yet exactly what is electric current flow.
QuoteMy thought is that atom-theory dont tell us yet exactly what is electric current flow.Electric current flow is flow of charge. In a solid, the charge is carried by the mobile electrons. Is there a problem with that? In an ionised gas or a liquid, the current may be carried by positive or negative ions. Isn't that ok?What more did you want?
Or, what is the positive or negative charge?,,,what kind of material particle is positive or negative?