Question

calculate the resistanceof a copper wire 1km long and 0.5 diameter if the resistivity of copper wire is 1.7*10to the power -8

Answer 1

do the calculations!!!!!
sry for mistake pls correct it in the above picture replace 2 by 1 as the length is 1 km

Answer 2

$1.7 \times 10 {}^{ - 5}$
Résistance=resistivity×length(in metres)/area