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How is an electric field determined?

  1. Feb 16, 2009 #1
    I know that an electric field is a region that surrounds a charged particle and exerts a force on the particle, but I don't know how to determine an electric field.
  2. jcsd
  3. Feb 16, 2009 #2
    I am assuming you need to find the equation for the electric field?

    Remember that [tex]E=\frac{F}{q}[/tex] where F is the force felt by an electrically charged object with charge q.
  4. Feb 16, 2009 #3


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    It depends on the problem being asked. Your textbook should have the equation for the electric field due to a point charge. Perhaps it also has equations for the electric fields of a line of charge as well as a charged plate or plane.

    And sometimes, the electric field is simply a given in the problem statement.
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