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Current in metal rod of gold leaf electroscope -- is it there?

  1. Aug 26, 2015 #1
    In gold leaf electroscope
    from the following video I have a doubt

    From time 2:11 to 2:14 flow of negative charge i.e flow of electron won't it cause current?
     
  2. jcsd
  3. Aug 26, 2015 #2

    sophiecentaur

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    Simple rule, which always applies. If charges move from A to B then a current flows.
    Of course, once the charges have stabilised on the electroscope, no more current will flow. (I = dQ/dt)
     
  4. Aug 26, 2015 #3
    Means ?When ?once the flow of negative charge i.e flow of electron is stopped.
     
  5. Aug 26, 2015 #4

    sophiecentaur

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    Well, isn't that the definition of an electric current??? :smile:
    If no charge is flowing from place to place, is there any current?
     
  6. Aug 26, 2015 #5
    No.
     
  7. Aug 26, 2015 #6

    sophiecentaur

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    So that is your answer. Once the charges have all spread out to the minimum energy configuration (in nanoseconds) the current has stopped.
     
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