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A negligibly small current is passed thr...

A negligibly small current is passed through a wire of length 15 m and uniform cross section `6.0 xx 10^-7 m^2` and its resistance is measured to be `5.0 Omega`. What is the resistivity of the material at the temperatuare of the experiment?

Text Solution

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Resistance `R=rho(1)/(A)`
Resistivity `rho=(RxxA)/(l)` `=2xx10^(7)Omegam`
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