1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Dipole in electric field

  1. Feb 27, 2017 #1
    1. The problem statement, all variables and given/known data
    The force exerted by a uniform electric field on a dipole is:
    A) Parallel to the dipole moment.
    B) Perpendicular to the dipole moment.
    C) Parallel to the electric field.
    D) Perpendicular to the electric field.
    E) non of the above.

    2. Relevant equations
    Net force on dipole = 0 N

    3. The attempt at a solution
    I think the answer is C just out of an image from a google search but I don't know if it is correct or not
  2. jcsd
  3. Feb 27, 2017 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Make a drawing of the dipole as two charges separated by some distance. Put in the force on each charge, then add the two. What do you get?

    On edit: I did my own search of images and I saw several showing what I asked you to draw. If the force is parallel to the electric field, as you say, in what direction would it be? With the field lines or against the field lines?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted