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: Equation for magnetic moment, E-field and B-field

  1. Aug 6, 2007 #1

    When a charge/current moves in a closed loop, a magnetic moment is generated.
    Is there any formula for connecting the magnetic moment to E-field and B-field?

  2. jcsd
  3. Aug 6, 2007 #2

    Meir Achuz

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    A magnetic moment m (a vector) produces a magnetic field given by
    B=[3(m.r)r/r^5-m/r^3] plus a delta function if r-->0.
    The r in the numerators are vectors and . means the dot product.
    There is no E field produced.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook