Question

The resistance of 120 meters of wire is 16Ω. What is the conductance of the wire from one end to the middle?

Answer 1

Gives

l=120m

R=16 ohm

We know that

$\rho=\frac{RA}{l}\\\sigma=\frac{l}{RA}$

Put value

$\sigma=\frac{120}{16\times A}=\frac{7.5}{A} mho/m$