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!

Finding net electric potential, i got it set up right, but somthing is f'ed up!

  1. Sep 25, 2005 #1
    Hello everyone I think i set this up properly but the answer is still wrong. I tried 2 different ways, both wrong.
    In Figure 24-33, what is the net electric potential at point P due to the four particles, if V = 0 at infinity, q = 5.50 fC, and d = 3.00 cm? Figure 24-33
    I used potential due to a group of point charges. V = The sum of all the point charges.
    V = 1/(4pi*Eo)(q1/r + q2/r + q3/r + q4/r);
    V = 1/(4pi*Eo)(5.50/.03 + 5.50/.03 + 5.50/.03 + 5.50/.03);
    V = 6.59x10^12 V;
    Which was wrong so i noticed that 2 of the charges q, where negative, so I tried:
    V = 1/(4pi*Eo)(5.50/.03 + 5.50/.03 + (-5.50/.03) + (-5.50/.03));
    V = 0 V; Wrong again.
    What am I doing wrong? Is it because q = 5.50 fC? I have no idea what f stands for? is it 10^-15 or what? :bugeye:
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?
Draft saved Draft deleted



Similar Discussions: Finding net electric potential, i got it set up right, but somthing is f'ed up!
  1. Did I do this right? (Replies: 0)

Loading...