This analysis will also apply to the case where the length l pertains to one short section of a much longer structure; in this case we will obtain the inductance per length as opposed to the total...This analysis will also apply to the case where the length l pertains to one short section of a much longer structure; in this case we will obtain the inductance per length as opposed to the total inductance for the structure. To determine the inductance, we invoke the definition: L≜ A current I flowing in the +z direction on the inner conductor gives rise to a magnetic field inside the coaxial structure.
