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Homework Help: Charged Rod

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

    I used the equation:

    kq/(d(d+L))

    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

    Gokul43201

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    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.
     
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