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!

Would a magnetic charge have the same strength as a electric charge?

  1. Apr 3, 2013 #1
    If magnetic charges existed, would the strength of the field be the same as a electric charge? Would you be able to plug it in to the equation of coulomb's law? If so, what would the constant be? The same?
  2. jcsd
  3. Apr 3, 2013 #2
    Well if they don't exist, then who's to say that they would have the same strength as the E.M.F.?
  4. Apr 4, 2013 #3
    You would need to use the permeability of free space rather than the permittivity, but otherwise yes.
  5. Apr 4, 2013 #4


    User Avatar
    Science Advisor
    Gold Member
    2017 Award

    Using quantum theory, Dirac has shown that the existence of a magnetic monopole implies the quantization of electrical charges. This would be great, because there is no explanation for a quantization of charges from any fundamental principle within the standard model of elementary particles yet (despite the fact that the charge pattern is restricted by the demand of an anomaly free chiral gauge group for the electroweak sector). Dirac's analysis shows that the strength of the magnetic monopole would be given by the then quantized electric charge of elementary particles. This rule reads (in Gaussian units)
    [tex]e g_n =\frac{n}{2} \hbar c,[/tex]
    where [itex]e[/itex] is the elementary electric charge and [itex]g_n[/itex] possible values for the magnetic charge with [itex]n \in \mathbb{Z}[/itex].
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook