Now I'm not exactly sure if someone hasn't asked a question like this, probably it has been done but I haven't stumbled upon one yet. Does the electric field has an upper limit of strength (force) it exerts on a mixture of gas for example or any other particle /fluid or gas or solid which interacts with it? Or in other words if I have a metal plate in a vacuum at some given potential that keeps on rising higher every second , can this go on forever and the field get ever stronger with increasing voltage? Is there an upper limit , even a theoretical one? Theoretically , ignoring that on daily conditions it would make an electric breakdown of surrounding matter etc etc.