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!

Coulomb's Law Theory

  1. Jan 30, 2008 #1
    1. The problem statement, all variables and given/known data

    Suppose you let identical pith balls come in contact to make q1=q2 would the charges be equal if the pith balls were of different size?

    2. Relevant equations

    F=k(q1)(q2)/r^2

    3. The attempt at a solution

    I would think they wouldn't be, because doesn't the charge require the radii?
     
  2. jcsd
  3. Jan 30, 2008 #2
    Force requires the distance, which the radius plays into, like your equation shows.

    Charge is charge, though. It just means the charge density is bigger or smaller.
     
  4. Jan 31, 2008 #3

    pam

    User Avatar

    Charge is pretty much locked in place on a pith ball (but not on a conductor).
    Very little charge would be transferred between two pith balls in contact.
    q1 and q2 could take on any value, independent of the radii.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Coulomb's Law Theory
  1. Coulomb's Law (Replies: 3)

Loading...