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It is stated that a Black hole has only mass, angular momentum and charge for properties, but since it is black ie no light escapes its event horizon and charge E/M is related (same speed) as light (photons), how can unbalanced charge be detected?
And since many Black holes have electron clouds ejected out from the poles, one could speculate that these black holes would be positively charged. Can this actually be measured, since light cannot escape the horizon, how can we really observe a charge?
Since I'm asking, let's also talk about angular momentum. Since all the mass is mathematically located at a singularity, how can a black hole have angular momentum? Or is this an argument to state that the mass of the black hole cannot be located at a single point, due to the BH having angular momentum?
Thank you in advance for your input.
And since many Black holes have electron clouds ejected out from the poles, one could speculate that these black holes would be positively charged. Can this actually be measured, since light cannot escape the horizon, how can we really observe a charge?
Since I'm asking, let's also talk about angular momentum. Since all the mass is mathematically located at a singularity, how can a black hole have angular momentum? Or is this an argument to state that the mass of the black hole cannot be located at a single point, due to the BH having angular momentum?
Thank you in advance for your input.