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Q1. A high-voltage coaxial cable comprises two concentric copper conductors separated by a dielectric barrier made of FEP (Fluorinated Ethylene Propylene). The inner conductor is solid, having radius a = 2.4mm. The outer conductor has inner radius b = 14.7mm and thickness t = 2mm. The FEP dielectric has a relative permittivity of ε, = 2.1. a) The outer conductor is initially grounded, and a potential difference Vab = 25kV is applied. c) Referring to the coaxial cable of Q1.: i) ii) iii) If the materials used in its construction are non-magnetisable, calculate the cable inductance at low and high frequency. What characteristic impedance is seen by a propagating electromagnetic wave? It is found that the application requires a cable of a higher voltage rating, but it is vital that the characteristic impedance is maintained. How would you adapt the cable design to meet this requirement?

Q1. A high-voltage coaxial cable comprises two concentric copper conductors separated by a dielectric barrier made of FEP (Fluorinated Ethylene Propylene). The inner conductor is solid, having radius a = 2.4mm. The outer conductor has inner radius b = 14.7mm and thickness t = 2mm. The FEP dielectric has a relative permittivity of ε, = 2.1. a) The outer conductor is initially grounded, and a potential difference Vab = 25kV is applied. c) Referring to the coaxial cable of Q1.: i) ii) iii) If the materials used in its construction are non-magnetisable, calculate the cable inductance at low and high frequency. What characteristic impedance is seen by a propagating electromagnetic wave? It is found that the application requires a cable of a higher voltage rating, but it is vital that the characteristic impedance is maintained. How would you adapt the cable design to meet this requirement?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q1. A high-voltage coaxial cable comprises two concentric copper conductors separated by a dielectric barrier made of FEP (Fluorinated Ethylene Propylene). The inner conductor is solid, having radius a = 2.4mm. The outer conductor has inner radius b = 14.7mm and thickness t = 2mm. The FEP dielectric has a relative permittivity of ε, = 2.1. a) The outer conductor is initially grounded, and a potential difference Vab = 25kV is applied.
Transcribed Image Text:Q1. A high-voltage coaxial cable comprises two concentric copper conductors separated by a dielectric barrier made of FEP (Fluorinated Ethylene Propylene). The inner conductor is solid, having radius a = 2.4mm. The outer conductor has inner radius b = 14.7mm and thickness t = 2mm. The FEP dielectric has a relative permittivity of ε, = 2.1. a) The outer conductor is initially grounded, and a potential difference Vab = 25kV is applied.
c) Referring to the coaxial cable of Q1.: i) ii) iii) If the materials used in its construction are non-magnetisable, calculate the cable inductance at low and high frequency. What characteristic impedance is seen by a propagating electromagnetic wave? It is found that the application requires a cable of a higher voltage rating, but it is vital that the characteristic impedance is maintained. How would you adapt the cable design to meet this requirement?
Transcribed Image Text:c) Referring to the coaxial cable of Q1.: i) ii) iii) If the materials used in its construction are non-magnetisable, calculate the cable inductance at low and high frequency. What characteristic impedance is seen by a propagating electromagnetic wave? It is found that the application requires a cable of a higher voltage rating, but it is vital that the characteristic impedance is maintained. How would you adapt the cable design to meet this requirement?
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