1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Total Electric Field

  1. Feb 11, 2009 #1
    1. The problem statement, all variables and given/known data

    A 1.8e-6 C charge is at the origin, while a -7.71e-6 C charge is 10cm to the right of it. Locate the x coordinate such that E=0. Note: q1 is at the origin O. Answer in units cm.

    2. Relevant equations


    3. The attempt at a solution

    I promise you I have attempted this equation. I'm not going to type it all out here. I have a sheet full of scratch work. The answer I keep getting is 1.96.
  2. jcsd
  3. Feb 11, 2009 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Welcome to PF :smile:

    I'm not sure where you went from here. But if you take the square root on both sides of the equation, at least you will not have to solve a quadratic.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook