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!

Homework Help: Charged Rod

  1. Feb 7, 2006 #1
    http://img209.imageshack.us/img209/2646/chargedrod1ew.png [Broken]

    I used the equation:


    I converted everything to meters before doing the calculations. (I'm kind of pressed for time at the moment... i'll post the actual work in 2 hours.)

    I want to make sure the equation is right.
    Last edited by a moderator: May 2, 2017
  2. jcsd
  3. Feb 7, 2006 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    1. An equation must contain an equality. What you've written is an expression. What is it an expression for ? And what do the variables represent ?

    2. Have you learnt integration ? If you have, I suspect you are required to derive the equation (it's just a 4-line derivation) for the field and substitute the values.

    3. Assuming d is the distance to the center of the rod, that is not the equation I get for the field.
  4. Feb 7, 2006 #3
    any more hints? i have to submit my hw in 20 min. :frown:
  5. Feb 7, 2006 #4
    Nevermind. i got it. Thanks for the help Gokul.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook