G9A01 — General Class

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G9A01 : Which of the following factors determine the characteristic impedance of a parallel conductor feed line?
A The distance between the centers of the conductors and the radius of the conductors
B The distance between the centers of the conductors and the length of the line
C The radius of the conductors and the frequency of the signal
D The frequency of the signal and the length of the line
Correct Answer: The distance between the centers of the conductors and the radius of the conductors