Viscosity, resistance, and temperature

gkangelexa · Jul 29, 2011

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?

boneh3ad · Jul 29, 2011

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.

Viscosity, resistance, and temperature

Discussion

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