That does make sense, but then what changes when batteries are in parallel? Based on your response I think I understand why the bulb is brighter, but now I'm curious as to what the advantages of parallel batteries are. I read somewhere that they will increase how long a bulb will shine? What...
I seem to lack a conceptual understanding of how batteries in series and parallel affect the brightness of a bulb. I understand that current adds when batteries are in parallel and that voltage adds when batteries are in series, but why does 2 batteries in series make a bulb more bright than two...