Answer:

Step-by-step explanation:
We are given that
Number of wires= N=75
Radius of cylinder=0.420 cm
Current in each wire=1.5 A
We have to find the magnitude of the magnetic force per unit length acting on a wire located at 0.22 cm from the center of the bundle.
r=0.22 cm
Force acting on a wire is given by
Force=F=IBL

Substitute the values in the given formula we get



Hence, force per unit length acting on a wire located 0.22 cm from the center of the bundle=
