Question

A phcn service is made up of seven strands of aluminum wire each wire has a diameter of 1.7mm calculate the cross sectional area of the service cable

Answer 1

n=7

$r=0.85mm$

Area

$A=n\pi r^2$

$$A=7\times3.14\times(0.85\times10^{-3})^2=1.588\times10^{-5}m^2$$