>>11844114Ok so first of i must say that im currently taking a course in GR but we havent come to charged bh yet (reißner norström solution), so all that i was and am saying is based on my intuition on EM and GR.
First off, the EM fields dont have to escape the bh. Just like the electric field of an electron doesent depend on whats "inside" the electron, one can determine the field of a charged bh simply for the exterieor of it. For the magnetic field this is more obvious, cuz it is (only) seen by an outside observer moving relative to the bh.
Now for the creation of a charged black hole, the story is more complicated. you asked what happens to charched part. crossing the ev.hor..
Now the solution i mentioned, is a solution for a eternatl bh, in EMPTY space. In the equations one sees that bc the EM-repulsion is SO much stronger than gravity, that a bh is unlikely to form from a lot of charged masses with the same sign. but suppose we have a normal bh and electrons start to fall in it. oversimplifyed it looks from the outside like the bh is "growing" and a field el. field starts to form. (now for this process i have a lot of questions, for example if the electron is one cm past the ev hor, is the el field of the bh instantly radially symmetric for an outside observer? cuz if it werent, then yes we could gain information about the motion of stuff inside simply by observing the em but idk... haha the world is so crazy).
Finally another interesting thing is that introducing charge into the bh, makes the spacetime behave very differently. there are two horizons (idk much about this).
When we get to this in the lecture i can make a thread explaining all this (hopefully)
