elect_flow_vs_conv_I - Perhaps the clearest way to think...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
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.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Perhaps the clearest way to think about this is to pretend as if movement of positive charge carriers constituted current ow. It is important to realize that the difference between conventional current ow and electron ow 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 ow. Conventional current ow is the standard that most all of the world follows. electron ow electron ow current ow current ow Conventional current ow is opposite to electron ow +-1.5V zap-o-matic...
View Full Document

Ask a homework question - tutors are online