We know Gravity affects Electromagnetism when we see Black Holes bending the light around them. That makes me wonder if Electromagnetism Can Effect Gravity?
Just like how $E=mc^2$ means energy and mass are equal, I’m guessing if one can affect the other than vise versa can be applied as well.
But yes electromagnetic fields have an energy density and pressures associated with them, and this means that they can act as gravitational sources.
– Zo the Relativist Sep 29 '22 at 17:06