1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Electric field with dielectric constant

  1. Nov 6, 2008 #1
    1. The problem statement, all variables and given/known data
    Two 5.0mm*5.0mm electrodes with a 0.10mm thick sheet of Mylar between them are attached to a 9.0 V battery. Without disconnecting the battery, the Mylar is withdrawn. (Very small spacers keep the electrode separation unchanged.) Dielectric constant for Mylar is k=3.1. What is the charge before and after the Mylar is withdrawn?
    What is the electric field before and after the mylar is withdrawn?

    2. Relevant equations
    C={k(epsilon_o)A}/d
    Q=CV
    C=kC_o


    3. The attempt at a solution
    I get the charges correctly but i just cant get the electric field before and after. Charge before is 62 pC and after its 20 pC. Help please.
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?
Draft saved Draft deleted



Similar Discussions: Electric field with dielectric constant
  1. Electrical field (Replies: 0)

  2. Electric Fields (Replies: 0)

  3. Electric fields (Replies: 0)

  4. Electric Field (Replies: 0)

Loading...