capacitor plates and current

Discussion in 'Homework Help' started by kconrad, Oct 1, 2010.

  1. kconrad

    Thread Starter New Member

    Oct 9, 2009
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    I am very new to electronics and have a question about capacitors. Does current (electrons) actually flow across the plates (terminals)? I have one book that illustrates it as doing this and another book that specifically says it does not. I'd appreciate someone clarifying this issue for me. Thanks in advance.

    Kirk
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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    kconrad likes this.
  3. Fraser_Integration

    Member

    Nov 28, 2009
    142
    5
    no current in the traditional sense, but the build up of charge on one of the plates causes an electrostatic potential to build up on that plate and force electrons on the other plate away from it (or towards it depending on polarity). It's called displacement current.
     
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  4. sceadwian

    New Member

    Jun 1, 2009
    499
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    While this is true for ideal capacitors real world capacitors will invariable have some leakage current associated with them which is real current flow especially higher value electrolytics.
     
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