A coaxial cable has conductor dimensions of a=1.0mm and b=2.7mm. The inner conductor is supported by dielectric spacers (Er=5) in the form of washers with a hole radius of 1 mm and an outer radius of 2.7 mm, and with a thickness of 5.0 mm. The spacers are located every 2 cm down the cable, the space between dielectrics can be considered to be filled with air (Er=1.0005). What is the capacitance if the cable length is 10 cm? What is the capacitance if the cable is 23 cm? What would be the capacitance of 10 cm of the cable if the entire dielectric is replaced by a dielectric with Er=3?

A coaxial cable has conductor dimensions of a=1.0mm and b=2.7mm. The inner conductor is supported by dielectric spacers (Er=5) in the form of washers with a hole radius of 1 mm and an outer radius of 2.7 mm, and with a thickness of 5.0 mm. The spacers are located every 2 cm down the cable, the space between dielectrics can be considered to be filled with air (Er=1.0005). What is the capacitance if the cable length is 10 cm? What is the capacitance if the cable is 23 cm? What would be the capacitance of 10 cm of the cable if the entire dielectric is replaced by a dielectric with Er=3?

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

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Question

A coaxial cable has conductor dimensions of a=1.0mm and b=2.7mm. The inner conductor is supported by dielectric spacers (Er=5) in the form of washers with a hole radius of 1 mm and an outer radius of 2.7 mm, and with a thickness of 5.0 mm. The spacers are located every 2 cm down the cable, the space between dielectrics can be considered to be filled with air (Er=1.0005).
1. What is the capacitance if the cable length is 10 cm?
2. What is the capacitance if the cable is 23 cm?
3. What would be the capacitance of 10 cm of the cable if the entire dielectric is replaced by a dielectric with Er=3?

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