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AP Physics - Electricity

  1. Mar 22, 2007 #1
    I just have a quick question, and if anyone could help, I would really appreciate it.

    Two lightbulbs, one rated 30 W at 120 V and one rated 40 W at 120 V, are arranged in two different circuits (parallel and series). The power source of both circuits is 120 V.

    What would the order of the bulbs be, in order of their brightness? That is, the 30 W bulb in parallel, the 40 W bulb in parallel, the 30 W bulb in series, and the 40 W bulb in series?

  2. jcsd
  3. Mar 22, 2007 #2
    The bulb that transforms the most Power will be the brightest.
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