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Wrapping It Up

So there are many ways to look at a simple formula like Ohm's law. Even though there are only three quantities involved, there are six different graphs that can be plotted:
  • Current as a function of voltage
  • Current as a function of resistance
  • Voltage as a function of current
  • Voltage as a function of resistance
  • Resistance as a function of voltage
  • Resistance as a function of current

Which of these are linear?

(Select more than one answer!)

Marca todas las que correspondan
  • A
  • Current as a function of voltage
  • B
  • Current as a function of resistance
  • C
  • Voltage as a function of current
  • D
  • Voltage as a function of resistance
  • E
  • Resistance as a function of voltage
  • F
  • Resistance as a function of current
  • Revisa tu respuesta (3)
    For Ohm's law, the main feature of the formula is proportionality. Even when the graph is non-linear, it is a proportional relationship... we just call it "inversely proportional." When the input is multiplied by a certain factor, the output is divided by that same factor... when the resistance is doubled, the current is cut in half (assuming the voltage remains constant).