If the resistance of a material 2 m long and 2 m2 in area of cross-section is 1.6 ×10-8 Ω, then its resistivity is
A. 3.2 × 10-8 Ω-m
B. 1.6 × 10-8 Ω-m
C. 0.64 × 10-8 Ω-m
D. 0.16 × 10-8 Ω-m
Show Answer
Answer: B
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