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Capacitors in circuits, quick answer needed please

  1. Sep 25, 2011 #1
    Capacitors 1, 2 and 3, have capacitances equal to 2.00 μF,
    4.00 μF, and 6.00 μF, respectively. The capacitors are connected in parallel, and
    the parallel combination is connected across the terminals of a 200-V source. The
    capacitors are then disconnected from both the voltage source and each other, and
    are connected to three switches as shown in Figure 24-42. (a) What is the
    potential difference across each capacitor when switches S1 and S2 are closed but
    switch S3 remains open? (b) After switch S3 is closed, what is the final charge on
    the leftmost plate of each capacitor? (c) Give the final potential difference across
    each capacitor after switch S3 is closed.

    For part b, is would the capacitors be connected in series? Also if they're in series would the sum of all 3 voltages be 0 b/c no voltage source is connected?
     
  2. jcsd
  3. Sep 25, 2011 #2

    lewando

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    Gold Member

    You are going to need to include Figure 24-42.
     
  4. Sep 25, 2011 #3
    crap sorry i attached it
     

    Attached Files:

  5. Sep 25, 2011 #4

    lewando

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    Gold Member

    When the circuit is reconfigured, how are the charged capacitors oriented? I would expect to see a "+" and "-" voltage reference on each capacitor terminal in the new circuit.
     
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