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!

Fixed point charges.

  1. Jul 26, 2009 #1
    A fixed point charge of +2q is connected by strings to point charges of +q and +4q (see attached diagram), Find the tensions [tex]T_1[/tex] and [tex]T_2[/tex].

    For [tex]T_2[/tex], I start summing the forces on the +4q point charge.

    [tex]F_{net,4q}=F_{q}+F_{2q}+T_2[/tex]

    [tex]0=F_{q}+F_{2q}+T_{2}[/tex]

    [tex]T_2=-(F_{q}+F_{2q})[/tex]

    Is this the correct vector equation?
     

    Attached Files:

  2. jcsd
  3. Jul 26, 2009 #2

    Doc Al

    User Avatar

    Staff: Mentor

    That's the right idea. (But I would use T1 and T2 to represent the magnitude of the tension forces.)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Fixed point charges.
  1. Fix charges (Replies: 1)

  2. Point charges (Replies: 4)

Loading...