[JohnVK]

The information is standard


Magnetic fields are axial... north to south and manifest as a torus.....
The electric field is orthogonal to the magnetic field (right angle) so the electric field is equatorial.

so assuming normal space/geometry (Euclidean)
around a planet such as Earth, the electric/magnetic circulation encompasses the matter and out into space, as does the magnetic/electric circulation of the Sun....

The heliosphere of the Sun extends out to where current space craft are....


Data from NASA's Voyager 1 spacecraft indicate that the venerable deep-space explorer has encountered a region in space where the intensity of charged particles from beyond our solar system has markedly increased. Voyager scientists looking at this rapid rise draw closer to an inevitable but historic conclusion - that humanity's first emissary to interstellar space is on the edge of our solar system.

The data making the 16-hour-38 minute, 11.1-billion-mile (17.8-billion-kilometre), journey from Voyager 1 to antennas of NASA's Deep Space Network on Earth detail the number of charged particles measured by the two High Energy telescopes aboard the 34-year-old spacecraft

The size of these fields can be measured, L1 and L2 (Lagrangian points) define the limits of Earth's field in the Sun's field.

as an aside
The shape of the fields shown in the diagram above, is rather inaccurate, especially the heliosphere