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A resistance wire of length 2 m and of uniform ... - WAEC Physics 1999 Question

A resistance wire of length 2 m and of uniform cross-sectional area 5.0 x 10-7 m2 has a resistance of 2.2 Ω Calculate its resistivity
A
1.8 x 10-7Ωm
B
5.5 x 10-7Ωm
C
1.8 x 10-7Ωm
D
5.8 x 107Ωm
correct option: b
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