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!

Net Electric Field Vector

  1. Jan 25, 2009 #1
    1. The problem statement, all variables and given/known data

    Two equal charges +6 μC are placed, one at <−1, 0, 0>m and the other at <5, 0, 0> m. What is the net electric
    field vector at the location A which is at <0, 0, 0>m? Show your work.

    2. Relevant equations

    E=KQ/|r|^2 * |r|

    3. The attempt at a solution

    r1=<0,0,0>-<-1,0,0>=<1,0,0>

    E1= k*(6x10^-9)/1 * <1,0,0>= <54,0,0>

    r2= <0,0,0>-<5,0,0>= <-5,0,0>

    E2= k*(6x10^-9)/(5^2) * <10.8/25,0,0>= <.93312,0,0>

    E1+E2=ENet

    Enet= <54,0,0>+<.93312,0,0>=

    <54.93312,0,0>
     
  2. jcsd
  3. Jan 25, 2009 #2

    Doc Al

    User Avatar

    Staff: Mentor

    This should be:

    E=KQ/|r|^2 * [itex]\hat r[/itex]

    OK.

    Recalculate E2.
     
  4. Jan 26, 2009 #3
    Thanks Doc Al!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Net Electric Field Vector
  1. Net electric field (Replies: 3)

Loading...