- #1
Bikrypto
- 3
- 1
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 batteries in parallel. If the power output of the bulb is P = I^2*R = V^2/R, and if parallel doubles the current and series doubles the voltage, why is series brighter. I think I lack an understanding of how current and voltage affect the brightness of a bulb and would like an explanation.