A wire of 50 cm long, `1mm^(2)` in cross-section carries a current of 4 A, when connected to a 2 V battery, the resistivity of wire is

A wire of 50 cm long, `1mm^(2)` in cross-section carries a current of 4 A, when connected to a 2 V battery, the resistivity of wire is
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A wire of 50 cm long, `1mm^(2)` in cross-section carries a current of 4 A, when connected to a 2 V ... `4xx10^(-6)Omega-m` D. `1xx10^(-6)Omega-m`
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