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Viscosity, resistance, and temperature

  1. Jul 29, 2011 #1
    When temperature increases, the resistance in a wire also increases. ( I = V/R )

    However, when the temperature increases, viscosity (resistance in a fluid) decreases...

    These are both resistances. Why does temperature increase cause an opposing effect in them?
  2. jcsd
  3. Jul 29, 2011 #2


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    Viscosity and electrical resistance are not analogous quantities. Additionally, viscosity increases with temperature in a gas but decreases with temperature in a liquid. It is a completely different physical phenomenon than electrical resistance.
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