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!

Evaluating a Line integral in spherical polar coordinates

  1. Mar 20, 2009 #1
    1. The problem statement, all variables and given/known data


    Consider the vector potential
    A = cr * [(sin theta)^2 * (cos fi) * (sin fi) + (cos theta)^2 ) er
    + (sin theta) cos (theta) * [(sin fi) (cos fi)  − 1] e theta
    + {(sin theta) (cosfi)^2 } efi


    er: in the er direction
    e theta: in the e theta direction
    e fi: in the e fi direction

    A is given in spherical polar coordinates.

    Calculate the line integral A dot dl with closed curve C, where C is the circle parametrised by fi, at some arbitrary values of (r, theta)


    Please help, I really can't do this line integral.
    It would also be nice to see a full solution!!


    Can anyone please also tell me what's the general trick of tackling problems with line integral?


    Many thanks guys!!!




    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Mar 20, 2009 #2

    gabbagabbahey

    User Avatar
    Homework Helper
    Gold Member

    We don't provide full solutions;it's against forum policy!

    Make an attempt, post your work and we'll help you through it.:smile:

    As a hint, a good starting point is to find an expression for dl (after all, you are going to have a heck of a time integrating A.dl if you don't know what dl is! :wink:)....
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Evaluating a Line integral in spherical polar coordinates
Loading...