elect_flow_vs_conv_I - Perhaps the clearest way to think...

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1 Electron Current vs. Conventional Current In 1752, prior to electricity being identified with the electron, Ben Franklin chose a convention regarding the direction of current flow. Franklin assumed that electrons (being assumed positive) flow from positive to negative terminals. We now know this is incorrect. The charge on an electron is negative by definition (note negative sign): (-1.6x10 -19 C) The flow of electrons is termed electron current . Electrons flow from the negative terminal to the positive. Conventional current or simply current , behaves as if positive charge carriers cause current flow. Conventional current flows from the positive terminal to the negative.
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Unformatted text preview: Perhaps the clearest way to think about this is to pretend as if movement of positive charge carriers constituted current flow. It is important to realize that the difference between conventional current flow and electron flow in no way effects any real-world behavior or computational results. In general, analyzing an electrical circuit yields results that are independent of the assumed direction of current flow. Conventional current flow is the standard that most all of the world follows. electron flow electron flow current flow current flow Conventional current flow is opposite to electron flow +-1.5V zap-o-matic...
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This note was uploaded on 04/17/2010 for the course ECE 112 taught by Professor Traylor during the Winter '09 term at Oregon State.

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