capacitor

Discussion in 'Homework Help' started by vultac, Apr 20, 2009.

  1. vultac

    Thread Starter Active Member

    Mar 2, 2009
    142
    0
    What would happen if 2 capactors, in series which each another with 1 higher voltage and 1 at lower voltage do while connected the the amplifier as well? for eg.


    -----||--------------||---------(amplifier)
    C1 C2

    If c1 has a voltage of 2volts and C2 has a voltage of 5V....

    would C2 share charge with c1? thx
     
  2. vultac

    Thread Starter Active Member

    Mar 2, 2009
    142
    0
    diagram is off. C1 is the first || and C2 2nd ||
     
  3. Darren Holdstock

    Active Member

    Feb 10, 2009
    262
    11
    Up to a point. It depends on the source impedance, load impedance, and capacitor values.

    Here's a simplification to start with: Imagine Zsource=Zload=0 Ω and that C1=C2. The junction of C1 and C2 must be at the same voltage, so C2 has to dump a load of charge into C1 to equalise the potentials.
     
  4. Thevenin's Planet

    Active Member

    Nov 14, 2008
    183
    1
    Are you saying that no matter what voltage is across the two capacitors in series that the voltage and current will balance. Does not the capacitance decreases when placed in series?
     
  5. vultac

    Thread Starter Active Member

    Mar 2, 2009
    142
    0
    current will balance.
     
  6. Thevenin's Planet

    Active Member

    Nov 14, 2008
    183
    1
    So, your agreeing that if current is balanced ,thus voltage will balance also?
     
  7. Darren Holdstock

    Active Member

    Feb 10, 2009
    262
    11
    There's not enough information in the original question for a real answer. Vultac, what do you need to know?
     
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