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Capactor as static electricity generator

  1. Aug 6, 2015 #1
    Suppose I first charge a capacitor so that one plate is positively charged and another negatively. Now I remove the charging source and ground only one of the terminals say negative terminal, will there be a net positive charge in the capacitor that can be detected by a pith ball?
    Can a capacitor be used as static electricity generator?
     
  2. jcsd
  3. Aug 6, 2015 #2

    Nidum

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    Early static electricity experiments , Leyden jar , electrophorus
     
  4. Aug 6, 2015 #3

    anorlunda

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    Yes you can do it. But the ball will only charge to the capacitor voltage. A bigger capacitor at the same voltage will not charge the ball any higher.
     
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