It is said that the conventional current flows from the positive terminal to the negative terminal of a battery,which means conventional current is the flow of protons,then is it right to conclude that the protons/nucleus of an atom move physically from the positive terminal to the negative terminal of a battery like the electrons.If not,then why is the conventional flow of electric current defined as the direction of flow of protons?

Asked by Ashrene | 1st Apr, 2012, 01:18: PM

Expert Answer:

 

Some chose to designate charge flow according to the actual motion of electrons in a circuit. This form of symbology became known as electron flow notation:

 

 

In conventional flow notation, we show the motion of charge according to the (technically incorrect) labels of + and -. This way the labels make sense, but the direction of charge flow is incorrect. In electron flow notation, we follow the actual motion of electrons in the circuit, but the + and - labels seem backward.

Answered by  | 1st Apr, 2012, 03:18: PM

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