Explanation:
It is given that,
Length of the solenoid, l = 1.39 m
Diameter of the solenoid, d = 3.2 cm = 0.032 m
Radius of solenoid, r = 0.016 m
Magnetic field inside the solenoid,
We need to find the length of the wire forming the solenoid. The magnetic field inside the solenoid is given by :
n is number of turns per unit length
N = 1740.04
The total length having N loop is,
L = 174.92 m
So, the length of the wire forming the solenoid is 174.92 meters. Hence, this is the required solution.