Two Light bulbs, one rated 30W at 120V and another rated 40W at 120V are arranged in two different circuits.
a) they bulbs are connected in parallel to a 120V source
determine the resistance and current in both bulbs.
b) determine the resistance and current if they are connected in series
The Attempt at a Solution
I took the power over the voltage to find the current and then plugged that into V=IR, but how does the voltage and current differ when it splits, or when it is in series?