[单选题]
A 1.0-m length of nichm7 fg n6- bvuy8n3p/t3ototbk4d 6xu 9rome 6q8xu q4pn+ppwire has a radius of 0.50 mm and a resistivity of $100 \times 10^{-8} \; \Omega \cdot m$. If the wire carries a current of 0.50 A, what is the voltage across the wire?
A. $0.0030 \; V$
B. $0.32 \; V$
C. $0.64 \; V$
D. $1.6 \; V$
