Why outlets spark when unplugging - EMF & Inductors

Inductance is so momentum like that I consider it conclusive that unification is possible. That might be a truism in that it seems unification is inherently required of all physics but still interesting.
Since momentum is mass related and therefore gravity related, it seems to follow that there must be a technological path to gravity via inductance. No guarantee that it's a practical path but word on the street is that it is.  So much physics is right there for discovery.