1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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!

At what position is the net electric field equal to zero?

  1. Jan 14, 2010 #1
    Two charges are separated by 1.0 m. Q1 has a negative charge of 4.2 µC and Q2 has a positive charge of 1.4 µC. At what position is the net electric field that is produced by both Q1 and Q2 equal to zero?

    Extra Credit: If a +5.0 µC charge is placed at this position, what force would act on it as a result of Q1 and Q2?
  2. jcsd
  3. Jan 15, 2010 #2
    You need to show your attempt at this question before we can help.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook