1.

Expression for input impedance of a transmission line in terms of load impedance and characteristic impedance is:

A. Z<sub>0</sub> (Z<sub>L</sub>+j Z<sub>0</sub>tan l)/ (Z<sub>0</sub>+j Z<sub>L</sub>tan l)
B. (Z<sub>0</sub>+j Z<sub>L</sub>tan l)/ (Z<sub>L</sub>+j Z<sub>0</sub>tan l)
C. Z<sub>0</sub> (Z<sub>L</sub>-j Z<sub>0</sub>tan l)/ (Z<sub>0</sub>-j Z<sub>L</sub>tan l)
D. (Z<sub>0</sub>-j Z<sub>L</sub>tan l)/ (Z<sub>L</sub>-j Z<sub>0</sub>tan l)
Answer» B. (Z<sub>0</sub>+j Z<sub>L</sub>tan l)/ (Z<sub>L</sub>+j Z<sub>0</sub>tan l)


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