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Communication Systems

Q1:

Which one of the following is true?

A Characteristic impedance of twin wire feeder and coaxial cable are nearly the. same

B The characteristic impedance of coaxial cable is more than that of twin wire cable

C The characteristic impedance of twin wire cable is more than that of coaxial cable

D The characteristic impedance of a twin wire feeder may be more or less than that of coaxial cable

ANS:C - The characteristic impedance of twin wire cable is more than that of coaxial cable

Z0 for twin wire cable is about 300 ohms while that for coaxial cable is about 75 ohms.



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