A 5.5 meter long Aluminum wire has resistance of 0.40 m?, ? = 2.82 × 10-8 ? ? m, ? = 4.29 × 10-3 C-1. Its conductivity is
A) 233. ? ? m.
B) 3.55 × 107 ?-1 m-1.
C) 2.5 × 103 ?-1 .
D) 2.5 × 103 ? ? m.
E) 2.33 × 107 ?-1 m-1.
B
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