what happens with an electric field when it did work on a charge?

[Creativity]

@Carnot

so,throwing infinite amount of asteroids on Earth will cause Earth to loose its gravity field? seems impossible.

that is the question i am facing.I will try to put the question in gravity terms to make it more clear.
Say i have Earth(charged capacitor plate) attracting drops of water from the rain cloud.Rain falls,and rain drops get accelerated by gravity field.Of course Earth is also attracted by rain drops,Earth moves towards the raindrops*.Now suppose i provide the way to elevate water back to cloud by evaporating and heathing the water vapour(this is the parallel with binding of electrons to the hydrogen atoms to leave the efield of capacitor plate).Repeating the cycle infinite many times,what happens to the Earth gravity field?does it gets any weaker?

In mine capacitor example i assume it an open system.Electrons got supplied to the electrode from surrounding(for example grounding of this electrode).Electrons are under field strong enough to evacuate from electrode(above work function for electrode).Electrons got accelerated in the efield of capacitor(they loose potential energy and gain kinetic) .Electrons hit the water molecules braking the bonds of water,electrons became part of molecules.Hydrogen (diatomic) forms and gets removed from the scene by gravity(with it electrons escape the efield).Cycle repeats.Is capacitor loosing any energy(letting surge to be neglected)?
It all looks like an electron pump (to compare it with a heat pomp used for heating systems).

OR to see it differently (in gravity terms) ,i try to crate the Earth,charge it with gravity and hope it will never run out.This gravity will then work on my rain i took from another galaxy(grounded wire).


*it is somehow different case with capacitor plate that is vast attached to the table and can not move,protons can't escape the capacitor plate.So protons energy can be transferred into heat of the plate,but that is only on the start of the machine,later they stay more stable because of the constant electron stream from the sharp electrode.

[Creativity]

@Creativity


    Expand your thought experiment to imagining the accelerating field also moving or accelerating.  Now those little charge carriers are really gonna get moving without effecting the polarizing scource.  Longitudinal waves suppose to be able to do this.

one way or another it looks like free electron pumping