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Discussion in 'MCAT Study Question Q&A' started by quiksilver87, May 17, 2008.

  1. quiksilver87

    10+ Year Member

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    Why does current flow in the opposite dirrection of electron flow?
     
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  2. mimimi

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    it's convention. current flow is in the direction of positive charge (they got it wrong on the first try).
     
  3. RPedigo

    Physician Faculty Moderator Emeritus 10+ Year Member

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    Scientists originally thought that it was positive charges that moved, so they defined current as the direction of the movement of positive charges. Of course, they were wrong, since it's electron movement, but the naming had been used for a while so it stuck. Since it's the movement of negative charges, the electrons, they must go in the opposite direction. Not a big deal.

    http://www.newton.dep.anl.gov/askasci/phy00/phy00628.htm



    edit: beaten!!


    I have also moved this to the Study Q&A subforum, as this relates to MCAT material. Hope my explanation made sense!
     
  4. quiksilver87

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    Thanks for the clarifications guys.
     
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