Topic: Electromagnetics
A very lossy, $1/4$ long, 50 ohm transmission line is open circuited at the load end. The input impedance measured at the other end of the line is approximately.
- A. 0
- B. $\infty$
- C. 50 ohm
- D. None of the above
Answer: A. 0
Explanation: $Z_{in}=\frac{Z_{0}^{2}}{Z_{L}}=\frac{Z_{0}^{2}}{\infty}=0$.