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Relative brightness

  1. Apr 13, 2004 #1
    There are five light bulbs. Light bulb C and D are in a series connection. C and D are in a parallel connection with E. Light Bulb A and B are in a parallel connection. The two parallel connections are wired in a series connection. What would be their relative brightness? I'm thinking that A=B=E=C+D

    Last edited: Apr 14, 2004
  2. jcsd
  3. Apr 13, 2004 #2


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    First you have to make at least one assumption. I would assume that the light bulbs are identical, and that "brightness" means "total power emited". Then brightness ~ I2.

    I disagree with your result (assuming I did it correctly). You need to use the voltage and current divider to examine this circuit.
    Last edited: Apr 13, 2004
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