Question

copper wire has a length 2m and area 1.7×10ke power -6 resistance 2 ohm calculate the resistivity

Answer 1

l=2m
area is 1.7 x 10^-6 square metres
R=2ohm
resistivity =(Rxarea)/length = (2 x 1.7 x 10^ -6)/2=1.7×10^-6 ohm m