Factors on which conductivity depends

  • Thread starter logearav
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  • #1
logearav
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Homework Statement



The conductivity of a material depends on a) Resistance(R) b) Area of cross section(A) c) Length(L)
d) Resistivity(ρ)

Homework Equations




The Attempt at a Solution


The formula for Resistivity is given by ρ = AR/L and Conductivity(σ) being the reciprocal of Resistivity, the formula is σ = L/AR.
So, i think the answer is d) Resistivity since that term is missing in the given equation of conductivity. Am i inferring correct?
But at the same time, i also think in this way,i.e., if there is more resistance there won't be much conduction and less resistance means more conduction. So Conductivity also depends on Resistance.
Please help in this regard
 

Answers and Replies

  • #2
Basic_Physics
358
6
I would think that the way resistivity is defined it only depends on the resistance of the material since as per definition of resitivity it is the resistance of 1 meter of the material with a uniform unit cross sectional area.
 

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