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Point charge

  1. Jul 7, 2011 #1
    What is a point charge??? I have read wikipedia but m not much satisfied... please can you explain me in your own words??? thanks
     
  2. jcsd
  3. Jul 7, 2011 #2

    tiny-tim

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    welcome to pf!

    hi girlzrule786! welcome to pf! :smile:

    a point charge is a charge at a single point, as opposed to the same charge distributed over a sphere

    (so eg we can use coulomb's law directly, instead of having to integrate over a volume)
     
  4. Jul 7, 2011 #3
    @ tiny tim... ohh!! thanks :smile:
     
  5. Jul 7, 2011 #4
    A point charge is an charged entity which occupies a minute point which is an ideal case.For practical purposes we consider it is a tiny charged body and the charge at a single point where all the charge is concentrated .
    we use point charges in the basic derivations of electrostatic equations which eliminates the complication of distribution and concentration of charge over the charged body.
     
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