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A 10-Gauge Copper Wire (Diameter = 2 $\rho$ = 17 $\times$ 10^-8 $\Omega$

Question 57

Multiple Choice

A 10-gauge copper wire (diameter = 2.588 mm, $\rho$ = 1.7 $\times$ 10^-8 $\Omega$ · m) has a total resistance of 0.32 $\Omega$ .How long is the wire?

A) 4.0 $\times$ 10² m
B) 1.6 km
C) 99 m
D) 31 m
E) 65 m

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