Resistivity and resistance

  • Thread starter jimbo71
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  • #1
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What's the difference between resistivity and resistance?
 

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  • #2
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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.
 
  • #3
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thank you this is a great explanation
 

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