Answer:
n = 1.22 10⁴ turns/m
Explanation:
The magnetic field in a solenoid is proportional to the intensity of the current, the number of turns per unit length (n) and the magnetic permeability (myo), is described by the equation
B = μ₀ n I
Let's clear the density of turns
n = B / (μ₀ I)
Let's replace and calculate
n = 5.81 / (4pi 10-7 3.79 102)
n = 5.81 105 / 47.63
n = 1.22 10⁴ turns / m
