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: Electric force due to point charges

  1. Sep 13, 2010 #1
    1. The problem statement, all variables and given/known data
    3 point charges are fixed in place in the right triangle shown below, in which q1= 0.67 microC and q2= -0.67 microC. What is the electric force on q3 with +1.0 microC due to the other two charges?
    direction, measured counterclockwise from the +x axis?

    **HYP=10cm or .1m (q1-q3)
    **Opp=8cm or .08m (q1-q2)

    2. Relevant equations
    [k (q1) (q1)]/d^2
    k= 8.99e9

    3. The attempt at a solution
    f13= (8.99e9 * .67e-6 * 1e-6)/ .1^2 <-- shouldn't this provide the magnitude from q1 & q2 on q3?
    Last edited: Sep 13, 2010
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted