The resistivity of iron is 1 times 10^{-7} , | vedclass

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(A) Resistivity $(\rho)$ is an intrinsic property of a material and depends only on the nature of the material and the temperature.It does not depend

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$1 	imes 10^{-7}$

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(A) Resistivity $(ho)$ is an intrinsic property of a material and depends only on the nature of the material and the temperature.It does not depend on the physical dimensions of the conductor, such as its length or cross-sectional area (diameter).Therefore, even if the length and diameter of the wire are doubled, the resistivity of the iron wire remains unchanged.Thus, the resistivity remains $1 	imes 10^{-7} \, \Omega \cdot m$.

The resistivity of iron is $1 \times 10^{-7} \, \Omega \cdot m$. The resistance of an iron wire of a particular length and thickness is $1 \, \Omega$. If the length and the diameter of the wire are both doubled, then the resistivity in $\Omega \cdot m$ will be:

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