A Nichrome Wire Is 1 M Long and 1 *10^-6 $\Omega$

Multiple Choice

A nichrome wire is 1 m long and 1 *10^-6 m² in cross-sectional area. When connected to a potential difference of 2 V, a current of 4 A exists in the wire. The resistivity of this nichrome is:

A) 10^-7 $\Omega$ . m
B) 2 * 10^-7 $\Omega$ . m
C) 4* 10^-7 $\Omega$ . m
D) 5 * 10^-7 $\Omega$ .m
E) 8 * 10^-7 $\Omega$ . m