Answer:
Explanation:
To calculate this, you need to use the correct expression which is the following:
L = Uo * N² * I * A / l
Where:
Uo = permeability of free space
N: number of turns
I: current
A: Cross sectional area of wire
l: length
The cross sectional area is calculated with the expression:
A = πr²
Replacing:
A = π*(3)² = 28.3 cm² or 2.83x10^-3 m²
Therefore the self inductance is:
L = 4πx10^-7 * 2.83x10^-3 * 200² / 0.71
L = 2x10^-4
