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 fields caused by multiple charges

  1. Feb 4, 2009 #1
    1. The problem statement, all variables and given/known data
    A particle with charge +7.88 μC is placed at the fixed position x = 3.00 m in an electric field of uniform strength 300 N/C, directed in the positive x direction. Find the position on the x axis where the electric field strength of the resulting configuration is zero.

    2. Relevant equations
    E= K*Q / r^2

    3. The attempt at a solution
    I set up the equation with E = 0 but I'm not sure how you can solve it now for R since e = 0
  2. jcsd
  3. Feb 4, 2009 #2
    Find a value for r such that E becomes equal and opposite to 300N/C ie a point where the 2 fields cancel to zero.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?