physics - conceptual

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Three identical capacitors are connected in series to a battery. If a total charge of Q flows from the battery, how much charge does each capacitor carry?
A)9Q
B)Q/3
C)Q
D)3Q
E)Q/9

  • physics - conceptual -

    The +Q charge from the + side of the battery actually goes to the + side of the first capacitor. That is really the end of the story so the answer is C)
    -------
    but I will babble on.
    an equal and opposite - Q charge appears on the - side of that first capacitor. It comes from the top side of capacitor 2 leaving + Q on the + side of capacitor 2
    that draws an -Q from the top of capacitor 3, leaving on the top and -Q on the bottom of capacitor 3
    --------
    the end

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