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Homework Help: Kirchhoff's Law or Ohm's Law

  1. May 28, 2010 #1
    1. Given only one 30Ω and one 60Ω, calculate all possible values of resistance that can be obtained.

    2.I am not certain of which equation I should be using ... I never had other problems which gave only this information, usually the voltage is given or the current.

    3. Here is my attempt but I strongly doubt it is right.
    RS = R1 + R2
    RS = 30Ω + 60Ω
    RS = 90Ω
  2. jcsd
  3. May 28, 2010 #2
    Hint: Consider how the resistors may be connected.
  4. May 28, 2010 #3
    Think about different combinations that you can come up with these two resistors. Try to draw those combinations. That could help.
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