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Internal resistance of a batery

  1. Sep 18, 2008 #1
    Hi All,

    I would like to know what is the precise meaning of the internal resistance of a DC source of voltage.
    Does it have some chemical contribution (as for instance, mean time for the reaction to occur, mean velocity of difusion of charge through the acid solution, or something like this) ?

    Thank you.

    Sincerely Yours

  2. jcsd
  3. Sep 19, 2008 #2
    I think you're right. And any resistance can be considered as you mentioned. The concentration of charges, the drift (may be the same as diffusion you mentioned, but I think diffusion relates to the gradient of charge density not electric field) velocity of charges, the number of charges one partical keep with.
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