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
- 1.8 x 10-7Ωm
-
5.5 x 10-7Ωm
- 1.8 x 10-7Ωm
- 5.8 x 107Ωm