Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Question Regarding electric field

  1. Nov 19, 2007 #1
    In polar molecules, dipole moment exists even in the absence of an external electric field.

    please tell me it is true or false
     
    Last edited by a moderator: Nov 19, 2007
  2. jcsd
  3. Nov 19, 2007 #2

    mjsd

    User Avatar
    Homework Helper

    what is your definition of a dipole moment? does this defn include an external field as an variable? you may need a field to detect a presence of a moment but do u need it to define it in the first place? You need to think about these issues....
     
  4. Nov 19, 2007 #3
    Why do magnetic moments arising due to spins of ferromagnetic materials, tend to align parallel to each other?
     
  5. Nov 19, 2007 #4

    Doc Al

    User Avatar

    Staff: Mentor

    Yes. That's why they're called polar molecules!
     
  6. Nov 19, 2007 #5
    can u understand me about dipole moment with or without electric field.
     
  7. Nov 20, 2007 #6

    Doc Al

    User Avatar

    Staff: Mentor

    Yes. Did you understand my answer? A permanent dipole moment does not require an external electric field. Examples of highly polar molecules would be the alkali halides.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Question Regarding electric field
Loading...