How does the CPU, RAM, MCC, etc. read binary?

Binary, as most know, is the base language for computing. When a program runs on the RAM, and its code is moved to the CPU so that your computer can do something, whatever it may be, that code is in binary, right? Well how does the CPU, RAM, etc. read this language when numbers themselves are abstract objects---ideas if I may? Pipelines, caches, CPUs, RAM.....all of these are concrete objects that can only be affected by concrete forms of energy, electricity for example. So how is it that 1s and 0s can be stored in them?