two problem about capacitors

Discussion in 'Homework Help' started by hugh_blackburn, Apr 12, 2015.

  1. hugh_blackburn

    Thread Starter New Member

    Apr 12, 2015
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    0
    Capture.PNG
    i have no idea for this . I found the max voltage of capacitor using voltage differences between two legs.
    Capture1.PNG
    i can't find the time constant for charging the capacitor in second image .
     
  2. WBahn

    Moderator

    Mar 31, 2012
    17,777
    4,804
    You need to show YOUR best effort to solve YOUR homework problem. We won't do it for you.

    HINT: Consider the Thevenin equivalent circuit as seen by the capacitor.
     
  3. hugh_blackburn

    Thread Starter New Member

    Apr 12, 2015
    2
    0
    i solve my homework's rest but in this two questions I don't know what to do ?
    My works are just irrelevant because the parellel resistors confuse me.
     
  4. WBahn

    Moderator

    Mar 31, 2012
    17,777
    4,804
    So what do you want from us? For us to just do your work for you?

    Do you know what a Thevenin equivalent circuit is?

    Do you know how to determine the Thevenin voltage and the equivalent resistance?
     
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