Which is the proper formula for mag-monopoles attraction?

AI Thread Summary
The discussion centers on the comparison of two resources related to magnetic monopoles, highlighting that both present the same equations in different units. It emphasizes the theoretical nature of magnetic monopoles, noting that they have not been observed in nature, despite some claims of their existence under specific conditions in exotic materials. Participants are encouraged to explore additional resources, such as Wikipedia, for a deeper understanding of Gaussian units. The conversation reflects ongoing interest and debate in the scientific community regarding the existence of magnetic monopoles. Overall, the topic underscores the complexity and intrigue surrounding magnetic monopoles in physics.
jumpjack
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This one?
http://geophysics.ou.edu/solid_earth/notes/mag_basic/mag_basic.html

or this one?

http://www.Earth'sci.unimelb.edu.au/ES304/MODULES/MAG/NOTES/monopole.html
 
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Both equations are the same, they are just in different units. Read up on http://en.wikipedia.org/wiki/Gaussian_units" to get a feel for what us going on.
 
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And I hope you realize that these are theoretical constructs because magnetic monopoles do not exist.
 
Actually, the've not been seen (yet). :wink:

Or maybe yes... A couple of times in the news I read about mag-monopoles having been found under very special conditions in exotic materials.
 
Thread 'Gauss' law seems to imply instantaneous electric field'

Thread 'Gauss' law seems to imply instantaneous electric field'

Imagine a charged sphere at the origin connected through an open switch to a vertical grounded wire. We wish to find an expression for the horizontal component of the electric field at a distance ##\mathbf{r}## from the sphere as it discharges. By using the Lorenz gauge condition: $$\nabla \cdot \mathbf{A} + \frac{1}{c^2}\frac{\partial \phi}{\partial t}=0\tag{1}$$ we find the following retarded solutions to the Maxwell equations If we assume that...
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Thread 'Do electron density waves accompany EM waves in coaxial cables?'

Maxwell’s equations imply the following wave equation for the electric field $$\nabla^2\mathbf{E}-\frac{1}{c^2}\frac{\partial^2\mathbf{E}}{\partial t^2} = \frac{1}{\varepsilon_0}\nabla\rho+\mu_0\frac{\partial\mathbf J}{\partial t}.\tag{1}$$ I wonder if eqn.##(1)## can be split into the following transverse part $$\nabla^2\mathbf{E}_T-\frac{1}{c^2}\frac{\partial^2\mathbf{E}_T}{\partial t^2} = \mu_0\frac{\partial\mathbf{J}_T}{\partial t}\tag{2}$$ and longitudinal part...
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