1. The problem statement, all variables and given/known data 4 identical light bulbs are connected either in series (circuit 1) or parallel (circuit 2) to a constant voltage battery with negligible internal resistance as shown. http://img413.imageshack.us/img413/7250/seriesoz2.th.jpg [Broken] http://img413.imageshack.us/img413/327/parallelfe8.th.jpg [Broken] (Sorry about the sloppy diagram but that's pretty much the gist of it) Compared to the individual bulbs in circuit 1, the individual bulbs in circuit 2 are: A) 1/4 as bright B) less than 1/4 as bright C) 4 times brighter D) the same brightness E) more than 4 times brighter 3. The attempt at a solution The resistance in Circuit 1 would be 4R while the resistance in Circuit 2 would 1/4 R. Because the parallel has a lower resistance, it has a greater current therefore there is more power in the parallel configuration. I thought the right answer was C) 4 times brighter but it is wrong and I can't understand why that is. What am I missing here?