What happens if you connect a galvanometer to an AC source?
I have seen many answers online along the lines of there not being any deflections as the net average current/net average magnetic field is zero (depends on the site but I won't cite them as I don't wholeheartedly trust them from bottom of my heart.)
I argue that since there is indeed an instantaneous current we must have an instantaneous deflection, right? I also want to argue two more things on what we may observe if we were to do a live demonstration.
Firstly the galvanometer coil must get damaged after a while due to the eddy current (this is a moving coil galvanometer I am considering currently. I also heard there's a metallic core in the galvanometer to make the pointer come to rest immediately.) So I argue that the MCG must get broken after a while.
Secondly, assuming the coil doesn't break, we can easily imagine the maximum deflection being produced when there is maximum current flowing. That's what I am assuming in my mind. Since my AC current flows at 220 V, 50 Hz I assume there must be at least 50 times the pointer going from one end to the other in a single second which would be impossible to be seen by a human eye thus rendering the whole act of finding deflection pointless. Maybe the galvanometer won't even move due to the inertia. Would I need to have a spare moving coil galvanometer and an AC source to try that out?