Quesiton) There is a transmission line with equal axis and an air gap, consisting of an inner conductor with a radius of a, which is filled completely and an outer thin conductor whit a radius of b.Find the inductance per unit lenght of the said transmission line
I want an explanation for these exceptionally:
a)what are the formulas to find the inner and outer inductance and what is the logic behind them
b)I understand the choose borders but i dont understand how to put the borders to formula which i red marked where they come from whats logich behind them can you explain me step by step with the answer of question
a) İç iletkenin içerisinde,
0≤r≤a.
EÅŸ. (5-11)'den
$B_1 = a_ϕ B_{ϕ1} = \frac{μ_0 I}{2πa}$
elde edilir.
b) İç ve dış iletkenler arasında,
a≤r≤b.
EÅŸ. (5-12)'den
$B_2 = a_ϕ B_{ϕ2} = \frac{μ_0 I}{2πr}$