Question

"Bonkers" You are working at a contractor that builds electrical and electronic devices and systems for very custom applications, often with really crazy requirements. (You've taken to calling some of the projects "bonkers".) There often is a need to think creatively You are working on a custom transmission line (TL) with circular cross-section, whose inner conductor radius is 1 mm and the outer conductor radius is 3 mm. (The TL is essentially a set of two very long concentric cylindrical conductors separated by a dielectric material, like for example, a coaxial cable.) One of the requirements that you must satisfy is a voltage rating of 2.8 kV with a safety factor of 10. Also, the capacitance per unit length must be as low as possible. Your task is to determine what dielectric material is to be used as an insulator in the line. There hidden third option ... are two options, Polystyrene or Mica. Or there might be Dielectric strength (MV/m) Dielectric constant Material Polystyrene Mica 2.7 21 6.0 200 The first thing you do is to determine the voltage rating and the capacitance per unit length of the transmission line for the two obvious designs (using Polystyrene and using Mica). Show your work here: Results Using Polystyrene dielectric filling: Voltage rating, Vp^ating Capacitance per length, C2 = Using Mica dielectric filling: Voltage rating, VMyating Capacitance per length, C^ =. Analysis of the results, conclusions and suggestions for future work towards an improved design

Answer 1

plysycene tx8-8512 X12. x 2.2 136. 68 85 eflm Vallye Tahing maix di On d2 : 2rx 1xlo n (3) MV 23. 07 KV ns

Mica C E FIm de - 2Tx9-12 X1x 6 Fm 30 3.73 Xi-/2 Flm pe/m 20 3.23 Valkpe taky 200 x Ix1-3 Jm() N 219 9224s KV -1 Mica has mh dieleme lutles to we sbrengt'o o Heseves tmy insulahr at is hat has er im dutwerm 3 to 6 and dieleihic shrendh araund Bo- Can lu fresed