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!

Find electric field

  1. Apr 21, 2012 #1
    1. The problem statement, all variables and given/known data

    Find the electric field produced by a 2.5uC point charge at distance of 0.75m.

    E = ___ V/m


    2. Relevant equations

    E = kq/r^2

    3. The attempt at a solution

    E = (9x10^9 Nm^2/C^2)(25)/(0.75)^2 = 400 x 10^9

    My concern is about the units I am being asked. Since K is using Nm^2/C^2, how do I convert it to V/m IF IT´S CORRECT, of course.

    Thanks in advance!!
     
  2. jcsd
  3. Apr 21, 2012 #2
    N/C is equivalent to V/m. There is no need to worry about conversions. The units of K cancel with the ones for q and r^2 to give you N/C
     
  4. Apr 22, 2012 #3
    Hi, thanks for the reply. Does my answer seem correct to you? Am I on the right track?
     
  5. Apr 22, 2012 #4
    Anyone? Please, time is really short for me and I really need quick help here. Please.
     
  6. Apr 22, 2012 #5
    I just need a confirmation. I posted the calculus and values. Are they correct?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Find electric field
  1. Finding Electric Field (Replies: 5)

Loading...