A 75-M Length of Copper Wire Whose Resistivity Is 1 $\times$

Multiple Choice

A 75-m length of copper wire whose resistivity is 1.7 $\times$
10^-8 $\Omega$ . m has a resistance of 1.6 $\Omega$ . The diameter of the wire is

A) 0.50 mm.
B) 1.0 mm.
C) 1.5 mm.
D) 2.0 mm.