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!

Equipotential surface

  1. May 29, 2006 #1
    "For a point charge of +3.50 microC what is the radius of the equipotential surface that is at a potential of 2.40 kV?"

    For a point charge, the voltage = kq/r, where k =9*10^9 N*m^2/C^2, q is the charge, and r is the radius. Solving for r, I get r = 13.1 m. But the answer is 12.6m...
     
  2. jcsd
  3. May 29, 2006 #2
    Your method is correct.
    The difference isn't all that alarming and has probably risen in your approximate value of k .
     
  4. May 29, 2006 #3
    ok, thanks!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Equipotential surface
  1. Equipotential surfaces (Replies: 3)

  2. Equipotential surfaces (Replies: 6)

  3. Equipotential surfaces (Replies: 0)

  4. Equipotential Surfaces (Replies: 1)

  5. Equipotential Surfaces (Replies: 2)

Loading...