I'm trying to picture how the question might apply with real components... Perhaps, bringing a capacitor close to an inductor, such that each affects the other?
The replies (above) indicate something needs to be changing, as far as current flow. The effect of electrons rushing across a capacitor plate, etc.
So I'm picturing a very large capacitor. There is room between its plates for an inductor (or transformer)... And we send AC through one, or both... What sort of behavior would we observe? Reactive effects? Phase change?
Or how capacitor plates might be constructed around the windings, or how the windings might be wrapped around a capacitor plate, or placed adjacent to the plates... Would this create a new and useful component?
By any stretch of the imagination, could it become an easy and efficient means to change the step up or down ratio of a transformer?
Etc.