A copper wire is 1 m long and has a uniform cross section of 0.1 mm2. – McqOptions

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1.	A copper wire is 1 m long and has a uniform cross section of 0.1 mm2. The resistance of wire at room temperature is 0.171 Ω. What is the resistivity of the material?
A.	1.71 × 10-6 Ωm
B.	1.71 × 10-7 Ωm
C.	1.71 × 10-8 Ωm
D.	1.71 × 10-9 Ωm
Answer» D. 1.71 × 10-9 Ωm

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