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Unformatted text preview: and determines that it takes 70 nanoseconds. Third, she uses the capacitance meter on her digital voltmeter to determine the total capacitance of the 15meter long cable to be 3 nanofarads. Finally, by measuring the outer diameter of the cable and guessing the thickness of the outer conductor, she estimates the inside radius of the outer conductor to be b=6 mm. a) What is the phase velocity on this transmission line? b) What is the relative dielectric constant of the insulating material between the two conductors? (Note that e =8.854 x 1012 F/m). c) What is the capacitance per unit length of this cable? d) What is the diameter of the center conductor? e) What is the characteristic impedance of this transmission line? (3) Problem 3.2 at the end of Lecture Note #3 (4) Problem 3.3 at the end of Lecture Note #3...
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 Spring '08
 CITRIN
 Frequency, Coaxial cable, $60, 6 mm, 2.5 meters

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