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: Potential energy in ELECTRIC DIPOLES

  1. Feb 15, 2009 #1
    1. The problem statement, all variables and given/known data
    IF THERE IS A MAXIMUM TORQUE WHEN THETA = 90 DEGREES BETWEEN ANGLE MADE BY THE DIPOLE VECTOR P AND THE ELECTRIC FIELD VECTOR E, WHY IS IT CONVENTION TO NOTE THE POTENTIAL ENERGY OF THE DIPOLE AT THETA = 90 DEGREES IS 0?

    SHOULDN'T THE POTENTIAL ENERGY AT THETA = 90 DEGREES BE A MAXIMUM AND MINIMUM WHEN THETA = 0 DEGREES (P VECTOR IS PARALLEL WITH E VECTOR)


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Feb 15, 2009 #2
    help
     
  4. Feb 16, 2009 #3
    oh i got it. sorry, maximum potential energy is when the positive end of dipole is closest to the electrical field.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook