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!

Potential for semi-circle

  1. Feb 19, 2006 #1
    I have this problem for homework and I would like to check my work:

    Charges are distribyted with uniform charge density (lambda)along a semi circle of radius R, centered at the origin of a coordinate system.
    What is the potential at the origin?

    I did this:
    dV=k*dq/R where k=1/4*pi*(epsilon 0)

    but dq=(lambda)*R*d(theta) theta is the small angle between two position on the semi circle.

    then V =| k*(lambda)*R*d(theta) / R (integral from 0 to pi)
    After computation I found: V=(lambda)/(4*epsilon 0)

    Thank you
  2. jcsd
  3. Feb 20, 2006 #2


    User Avatar
    Science Advisor
    Homework Helper

    Looks ok.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Potential for semi-circle
  1. Charged Semi-Circle (Replies: 1)