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Homework Help: Question about resistors in Parallel

  1. Feb 3, 2012 #1
    1. The problem statement, all variables and given/known data
    I need to devise an experiment to show that the total resistance decreases as additional resistors are added to a parallel circuit of resistors. All resistances of the resistors are the same.

    2. Relevant equations

    3. The attempt at a solution
    So far I can work it out mathematically say the resistance of the resistors is 20 Ω

    For two resistors:
    R(Total)=10 Ω
    For three:

    So I can confirm that the total resistance of the circuit is increasing but I'm having problems devising the experiment.

    Thanks in advance! :D
  2. jcsd
  3. Feb 3, 2012 #2
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