[单选题]
A 1.0-m length of nichrome wire has a radius of 0.50 mm8bd *jlau:7qm -xf /ograc23t1skfl 3 and a resistivb6 jq1vrs:z f 9z-ms5k)zahi4 ity 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. $1.6 \; V$
