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What is the velocity factor of a coaxial cable having an insulator with dielectric constant 2.1?(a) 0.69(b) 0.54(c) 0.32(d) 0.45I have been asked this question in a job interview.Enquiry is from Transmission Line Basics in chapter Transmission Lines of Avionics |
Answer» CORRECT option is (a) 0.69 The EXPLANATION: The velocity FACTOR in a line can be computed with the expression Where ε is the DIELECTRIC constant of the INSULATING material. |
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