Understanding the Difference: Resistivity vs. Resistance

[jimbo71]

What's the difference between resistivity and resistance?

 

[Ofey]

Resistivity is a measure of how well a particular substance or material opposes an electric current, whereas resistance measures how well a particular component in an electrical network resists an electric current.

So we can say that a resistor made of iron has a resistance of 9 ohm, and that iron has a resistivity of 1.0×10-7 (ohm×m). Notice that resistanse and resistivity is measured in different units.

 

[jimbo71]

thank you this is a great explanation