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nautica
Feb8-04, 06:39 PM
A 6 volt battery supplies a total of 48W to two identicle headlights in parrallel. The resistance in each bulb is:

My confusion here is that I am not sure where the watts would fit into resistances.

Could someone lead me in the right directions.

thanks
nautica

jamesrc
Feb8-04, 06:45 PM
Use the power to find the current through each lightbulb (P = VI); then use Ohm's law to find resistance.

nautica
Feb8-04, 06:57 PM
So

48W=6VI, so 8 total, which would give 4 in each, right?

thanks
nautica