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(A) The resistivity $(ho)$ of materials at room temperature is as follows:$1$. Copper $(Cu)$ (Conductor): $\approx 1.7 	imes 10^{-8} \ \Omega \cdot

Vedclass · Accepted Answer

Copper $ < $ Nichrome $ < $ Germanium $ < $ Silicon

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(A) The resistivity $(ho)$ of materials at room temperature is as follows:$1$. Copper $(Cu)$ (Conductor): $\approx 1.7 	imes 10^{-8} \ \Omega \cdot m$$2$. Nichrome (Alloy): $\approx 1.0 	imes 10^{-6} \ \Omega \cdot m$ (or $100 	imes 10^{-8} \ \Omega \cdot m$)$3$. Germanium (Semiconductor): $\approx 0.46 \ \Omega \cdot m$$4$. Silicon (Semiconductor): $\approx 2300 \ \Omega \cdot m$Comparing these values,the increasing order of resistivity is: Copper Therefore,the correct option is $A$.

Arrange the following materials in increasing order of their resistivity: Nichrome,Copper,Germanium,Silicon.

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