I'm trying to increase my knowledge of electric circuits and their major components. My current understanding is very basic, which will explain why my question may seem laughable to most people on here. Regardless, I'm hoping someone can water down an explanation for me regarding operational amplifiers. After a bit of reading and looking for explanations, the common thread is that:
In an ideal amplifier, current does not flow into or out of the inputs (there is 0 input bias current). However, I keep hearing that you essentially "put in" a voltage. I'm unclear as to how one can input a voltage while supplying no current.
I understand how there can be voltage without current flow (say, if a point charge is present but not moving in space). But in amplifier inputs, the important part seems to be "inputing" a voltage. I just don't understand how you can supply or input a voltage without moving some charge through the input (at least initially).
If my understanding is so far gone that you do not understand my question, please let me know (and perhaps provide a few resources that you feel describe amplifiers or electronics in an easily digestible way).