Recent content by Goob

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    Calculating the potential difference across a lamp

    Yeap, I just solved it along those lines, Thanks a lot for your help!
  2. G

    Calculating the potential difference across a lamp

    I know that in parallel the current adds up, and the voltage in constant, and in series that the current is constant but the voltage adds up, so if I calculate the pd across YZ it would be the same as the pd across the bulb. But if I try to do this I still encounter my original problem -...
  3. G

    Calculating the potential difference across a lamp

    Homework Statement The potential divider XZ has a potential of 3.0 V across it. When the contact is at the position Y, the resistance of XY equals the resistance of YZ which equals 12Ω. The resistance of the lamp is 4.0Ω. Picture of the relevant circuit...
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