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Homework Help: Capacitors plates again

  1. Jan 26, 2008 #1
    1. The problem statement, all variables and given/known data
    A parallel plate capacitor with the separation between the plates as 'd' has its lower plate dipped in water. Before dipping, the lower plate has charge Q, while the upper plate has charge 2Q. Let K be the dielectric constant of water. What will be the final charge on the lower surface of the plate dipped in water.

    2. Relevant equations

    3. The attempt at a solution
    I am not showing the equations and attempt to my solution.
    The answer I got is 3Q/2, can anyone comment on if my answer is correct.
  2. jcsd
  3. Jan 26, 2008 #2
    If you post your work I'll tell you whether or not it is correct.
  4. Jan 28, 2008 #3
    its so much time taking to show the work... if u can just tell yes or no.. its sufficient for me.. thx in advance..
  5. Jan 28, 2008 #4


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    Science Advisor
    Homework Helper

    Mindscrape is trying to help you. You may want to re-read this sticky towards the top of this subforum page. It will explain that help is only given to those who show their work.
  6. Jan 28, 2008 #5
    i m just forced to post my questions in this homework forum because of the warnings i get.. these questions are not homewrk questions.. i m just trying to understand the subject myself.
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