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Need help answering an electrical question

  • 30-11-2012 1:38pm
    #1
    Jude_2010
    Registered Users, Registered Users 2 Posts: 118 ✭✭


    can anyone help me do this question please?


Comments

  • #2
    Dardania
    Registered Users, Registered Users 2 Posts: 3,612 ✭✭✭Dardania


    How far did you get?


  • #3
    pljudge321
    Registered Users, Registered Users 2 Posts: 1,129 ✭✭✭pljudge321


    Its at dc steady state so there will be no current flowing in or out of the capacitor. This means there will be no voltage drop across the 10 kOhm resistor.

    Once you get this point it should just be simple voltage division to find the capacitor voltage which will give you the energy stored in it.


  • #4
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,641 Mod ✭✭✭✭2011


    pljudge321 wrote: »
    Once you get this point it should just be simple voltage division to find the capacitor voltage which will give you the energy stored in it.
    .........charge stored in the capacitor by using Q=CV

    The same answer given to the same question asked on the Electrical forum.


  • #5
    pljudge321
    Registered Users, Registered Users 2 Posts: 1,129 ✭✭✭pljudge321


    2011 wrote: »
    .........charge stored in the capacitor by using Q=CV

    The same answer given to the same question asked on the Electrical forum.

    Ah yes, my bad.


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