The Resistance of a 100-Cm Wire of Cross Sectional Area $10 ^ { - 6 }$

Multiple Choice

The resistance of a 100-cm wire of cross sectional area 2 × $10 ^ { - 6 }$ $m ^ { 2 }$ is 400 ?. What is the resistivity of the material from which this wire is made?

A) 0.80 × $10 ^ { - 4 }$ ? ? m
B) 8.0 × $10 ^ { - 4 }$ ? ? m
C) 0.80 × $10 ^ { - 5 }$ ? ? m
D) 0.80 × $10 ^ { - 6 }$ ? ? m
E) 8.0 × $10 ^ { - 6 }$ ?v