1)We can place bar magnet in the edge of the carousel and ourselves be in the center of the carousel. If I consider myself a nucleus, then that would represent Bdipole.
2) We can do exact same situation,bet instead of the bar magnet,we place charged ball on the edge of the carousel and let it spin. That would be B orbital.By using megneto meter in these both cases we theoretically could see magnetic field in the center.
3)In another case let’s say the child in nucleus. If he would take and hug the charged ball that would represent the B fermi contact situation.