Stationary Monopole exist at the Origin

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Discussion Overview

The discussion centers around the theoretical existence and implications of stationary magnetic monopoles at the origin, exploring their electromagnetic behavior as described by Maxwell's equations. The scope includes theoretical considerations and speculative reasoning regarding monopoles in electromagnetism.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant presents equations for the magnetic field ##\vec{B}## and electric field ##\vec{E}## associated with a stationary monopole, suggesting that both current densities ##J_m## and ##J_e## are zero in this static case.
  • Another participant argues that there is no evidence for magnetic monopoles, framing the discussion as speculative.
  • A different participant acknowledges the interest in the topic and confirms that in the static case, both electric and magnetic current densities are indeed zero.
  • One participant references a textbook that discusses the symmetry of Maxwell's equations with the introduction of magnetic monopoles, noting that while this is a theoretical framework, no magnetic monopoles have been observed.

Areas of Agreement / Disagreement

Participants express differing views on the existence of magnetic monopoles, with some engaging in theoretical exploration while others emphasize the lack of empirical evidence, indicating that the discussion remains unresolved.

Contextual Notes

The discussion relies on the assumption that magnetic monopoles could exist and be described by modified Maxwell's equations, but the lack of observational evidence for monopoles introduces uncertainty into the theoretical framework being discussed.

Philosophaie
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A stationary Monopole exist at the Origin.

1)##\vec{B} = \frac{g \hat r}{4 \pi r^2}##
2)##\vec{E} = \frac{e \hat r}{4 \pi \epsilon_0 r^2}##

3)## - \nabla \times \vec{E} = \frac{\partial \vec B}{c \partial t} + \frac{4 \pi}{c} \vec{J_m}##
4)##\nabla \times \vec{B} = \frac{\partial \vec E}{c \partial t} + \frac{4 \pi}{c} \vec{J_e}##

##- \nabla \times \vec{E} = 0##
##\frac{\partial B}{c \partial t} = 0##
therefore
##J_m = 0##

Similarly
##J_e = 0##

Is this correct?
 
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There is no evidence for magnetic monopoles, so any discussion about how they would behave is speculation
 
Well, it's nevertheless interesting. Of course, in the static case you have ##\vec{J}_e=\vec{J}_m=0##.
 
My first-year intro physics textbook (Halliday & Resnick, Fundamentals of Physics, 2nd ed., early 1970s) noted briefly that Maxwell's equations could be made symmetric between E and B by introducing magnetic monopoles, in the form shown in post #1 (as well as in Wikipedia). It then quickly noted, of course, that no magnetic monopoles have ever been observed. And this is probably not the only way one could set up electromagnetism with monopoles, simply the most "obvious" way.
 
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