Description

Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. The sizes of the symbols in the equation change along with the diagram of a wire. Primary aims:

  • What characteristics of a resistor are variable in this model?
  • How does each affect the resistance? (Will increasing or decreasing each make the resistance correspondingly increase or decrease?)
  • Explain your ideas about why they change the resistance.

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