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Capacitance problem

Discussion in 'Electronics Homework Help' started by shorteddiode, Sep 29, 2012.

  1. shorteddiode

    shorteddiode

    41
    0
    Mar 23, 2011
    I have been fighting with this problem for hours. If I am thinking right if C3 shorts out it would be like the cap wasn't there and a wire was there instead.
    So I figured C2 and C4 as parellel caps and added them together and which makes 0.02uF. The figured C1 and the 0.02 as a series circuit. I keep getting 0.12 as an answer, which as you can see is not an option. What am I doing wrong??
    If all the caps are good wouldn't the capacitance be 0.15uF? If not I screwed up the other question too.
    I hope someone can explain this to me.
    Thanks in advance
     

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  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,174
    2,690
    Jan 21, 2010
    Does shorting C3 short anything else out?
     
  3. Harald Kapp

    Harald Kapp Moderator Moderator

    9,136
    1,844
    Nov 17, 2011
    Your calculation of a series capacitance is correct, but not applicable here. Think about Steve's question. It should lead you to the correct answer.
     
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