- #1
Taturana
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Why is the electric current in the opposite direction of the flow of electrons?
One may say: "Oh, because the electric current represents the flow of positive charges"...
Okay, but why don't the theory use the electric current representing the flow of negative charges?
I heard from a professor that it is because in the beginning of the study of electricity "they" used to think that the electric current was caused by the flow of positive charges... then later they realized that it was caused by the flow of electrons (in the solid conductors) and then to don't remake the theory and to don't need to rewrite everything that was writen, they defined electric current as the flow of positive charges... (this was done because the direction of the flow of electrons does not make different for calculation purposes)... is my professor right?
Thank you,
Rafael Andreatta
One may say: "Oh, because the electric current represents the flow of positive charges"...
Okay, but why don't the theory use the electric current representing the flow of negative charges?
I heard from a professor that it is because in the beginning of the study of electricity "they" used to think that the electric current was caused by the flow of positive charges... then later they realized that it was caused by the flow of electrons (in the solid conductors) and then to don't remake the theory and to don't need to rewrite everything that was writen, they defined electric current as the flow of positive charges... (this was done because the direction of the flow of electrons does not make different for calculation purposes)... is my professor right?
Thank you,
Rafael Andreatta