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 between two positivly chared surfaces

  1. Jan 21, 2008 #1
    1. The problem statement, all variables and given/known data
    Figure 24-34 shows cross-sections through two large, parallel, nonconducting sheets with identical distributions of positive charge with surface charge density σ = 2.62 x 10-22 C/m2. What is the y component of the electric field at points (a) above the sheets, (b) between them, and (c) below them?
    [​IMG]


    2. Relevant equations
    E=[tex]\sigma[/tex]/[tex]\epsilon[/tex]


    3. The attempt at a solution
    my question is how would u find the y component as when using the equation you get E? would you use trig or is there another way?
     
  2. jcsd
  3. Jan 21, 2008 #2

    Dick

    User Avatar
    Science Advisor
    Homework Helper

    There is ONLY a y component from each plate, isn't there? Just ask yourself in each region whether the E fields add or subtract. No trig needed.
     
  4. Jan 21, 2008 #3
    ic...just one quick question, does the rule for cylinders apply for this question so that the center has a net electric field of 0?
     
  5. Jan 21, 2008 #4

    Dick

    User Avatar
    Science Advisor
    Homework Helper

    Compute the E fields on each side, consider direction and add them. There is no automatic rule telling you that the E field in the middle is zero.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Electric Field between two positivly chared surfaces
Loading...