"Ground" is nothing more (in this context) than an identifier to indicate which node we choose to measure all other node voltages relative to. It has NO impact on circuit operation.Hmmm you know what, I understand most of it. Why is ground away from battery though when the circuit goes to the negative battery terminal? Or is the triangle the ground symbol?
We often choose to use the negative terminal of a battery as our reference node, which why it is often called "ground" (it should be called "common" or "reference" -- "ground" actually has a very specific meaning when talking about power systems, but almost everyone gets pretty sloppy with it.


