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HElp on this question

  1. Nov 4, 2007 #1
    i am lost plz help me
    [​IMG]
     
  2. jcsd
  3. Nov 4, 2007 #2
    Well for starters. Since the cap has been charging for a long time. What is the voltage of the cap just before the switch is thrown? What is the voltage of the cap the instance it is thrown?
     
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