Answer
$R=2.4{\Omega}$
Work Step by Step
The resistance $R$ can be determined as:
$R=\frac{{\rho}L}{A}$
$R=\frac{{\rho}L}{\pi r^2}$...........................eq(1)
Also,
$L=N\times2{\pi}R=250\times2\times3.1416\times0.12=188.496m$
Now putting values in eq(1), we get
$R=\frac{1.69\times10^{-8}(188.496)}{3.1416(\frac{1.3\times10^{-3}}{2})^2}$
$R=2.4{\Omega}$
