It depends on the diameter of the "earth". If it is exactly the same size as Earth, then a 7,917.5 mile long wire would be required.
"The strongest current was found around the galaxy 3C303, whose core is the origin of a massive matter jet." (POPULAR SCIENCE, The Strongest Electrical Current)
This galaxy is admitting 1018 amps. This equals one TRILLION bolts of lighting.
The Earth's magnetic field at its surface ranges from 35 to 65 microteslas.
I believe because some prats of south amsica where conceyed by different people Spain and proutugul and because of the different tribes of native poeple
Reason being that Mexico is part of the North American region with Canada and the United states. The central american countries are all those that border below mexico between mexico and Colombia. Hoped this helped.