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and what about the direction of the flow of electrons... I think it's from the negative to the positive .. right ?
thank you so much ... :)

2007-01-06 13:04:47 · 8 answers · asked by Anonymous in Science & Mathematics Physics

8 answers

Yes, electrons flow from negative to positive. But when we say "current" we usually refer to the "conventional current", which goes from positive to negative. Both ways will give you the right answer in your equations.

2007-01-06 13:07:33 · answer #1 · answered by rozinante 3 · 0 0

Electric current is the flow of electrons.

Electrons posses a negative charge.

An accumulation of excess electrons (those without a covalent bond) in a material would indicate it as a "negative pole" to a material with fewer or no free electrons.

Flow will be from negative, where there are more electrons, to positive, where there are fewer electrons.

This is referred to as "electron current flow" for the purpose of discussion whether referring to the electrons or the current (since they are, in effect, the same).

However, before we learned what current really was, which happened quite recently (relatively speaking) current was indeed considered to flow from positive to negative.

This theory gained acceptance to the extent that its use is still acceptable today.

In fact that there is little or no difference in the effect of this theory, known as "conventional current flow" and the more accurate (or so science believes) "electron current flow" when understanding the properties of electricity and electronics.

2007-01-06 13:26:02 · answer #2 · answered by David G 2 · 0 0

Yes ! It would seem that things would go from positive to negative, but that is wrong. Lightening goes from earth to clouds.
Electrons flowing from a low potential to a high potential is called a flow of electrons. In our circuit, the electrons exit the negative pole of the battery, flow around to the positive pole and then through the battery to the negative pole where they repeat their journey.

2007-01-06 13:24:20 · answer #3 · answered by Pey 7 · 0 0

You're right. By convention, current refers to the flow of positively charged particles. This is only a model with no physical basis, since the actual charge carriers are electrons that flow in the opposite direction.

2007-01-06 13:07:28 · answer #4 · answered by Intrepyd 5 · 1 0

electric current basically is the flow of charge (ie electrons),which as you said is from negative to positive but the convention says its from positive to negative( we were told in class that this is so because the convention was put forward before they found out that flow of 'electrons' was the cause of electricity)

2007-01-06 16:28:26 · answer #5 · answered by Neelu 2 · 0 0

Conventional current flow is from positive to negative. Electron flow is from negative to positive.

Thanks for the 'Thumbs Down', what do I know anyway????

It's what I do for a living you moron!!!!!!!!!!!!!!!!!!!!!

2007-01-06 13:09:52 · answer #6 · answered by Anonymous · 0 1

It's from positive to negative, I'm sure.

2007-01-06 13:07:25 · answer #7 · answered by Bob 3 · 0 0

curreny and electrons flow from neg to pos. , unlike what people normaly think

2007-01-06 13:08:42 · answer #8 · answered by ford m 1 · 0 0

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