hello, i have a question regarding the way we represent information on circuit diagrams. The first is to do with representing output voltages: is V out always simply representing the voltage of whatever lies between/trapped between those two horizontal lines? Also, i see a lot of diagrams like this and am asked to determine v out. However, im not sure whether or not current would flow into those horizontal lines protruding out to those 2 nodes. I dont know whats been connected in there... do i need to know? does current "split" at that top junction? regards james.