c) Figure 3 depicts a lengthwise cross-section of a coaxial transmission line, indicating the direction of current flow in the inner and outer conductors. load source D 2a 26 Figure 3 (i) Starting with the expression of Ampère's law for a long current carrying conductor, find an expression for the total magnetic flux linking the area ABCD, and show that the inductance per unit length of the transmission line at very high frequencies is given by: L' = In 2π (ii) Explain why the internal inductance of the conductors is ignored at high frequencies (iii) Calculate the inductance per unit length and characteristic impedance of the coaxial cable of Question 1(c). •

c) Figure 3 depicts a lengthwise cross-section of a coaxial transmission line, indicating the direction of current flow in the inner and outer conductors. load source D 2a 26 Figure 3 (i) Starting with the expression of Ampère's law for a long current carrying conductor, find an expression for the total magnetic flux linking the area ABCD, and show that the inductance per unit length of the transmission line at very high frequencies is given by: L' = In 2π (ii) Explain why the internal inductance of the conductors is ignored at high frequencies (iii) Calculate the inductance per unit length and characteristic impedance of the coaxial cable of Question 1(c). •

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.8P: A 60-Hz, single-phase two-wire overhead line has solid cylindrical copper conductors with a 1.5 cm...

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