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Electromagnetic Engineering: Transmission Lines
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Electromagnetic Engineering: Transmission Lines
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25 Questions

1. The short circuit impedance of the transmission line is given by
2. Find the transmission coefficient of a 75 ohm line with load impedance of 40 ohm.
3. The Smith chart is a polar chart which plots
4. The velocity of wave in the air medium is
5. Standing waves occurs due to
6. The radius of the point having a normalised resistance of 1 ohm is
7. The characteristic impedance of a line having open and short impedances of 20 and 5 respectively is
8. Find the load impedance in a quarter line transformer with characteristic impedance of 75 ohm and input impedance of 200 ohm.
9. The condition for a quarter wave transformer is
10. The propagation constant of a transmission line with impedance and admittance of 9 and 16 respectively is
11. The standing waves for open circuit voltage and short circuit current are the same. State true/false.
12. When a transmission line has a load impedance same as that of the characteristic impedance, the line is said to be
13. The circles in the Smith chart pass through which point?
14. The reflection coefficient of a wave with transmission coefficient 0.35 is
15. The primary parameter that is associated with the electric charges is
16. Which transmission line is called as one to one transformer?
17. Find the reflection coefficient of the wave with SWR of 3.5.
18. Given that the reflection coefficient is 0.6. Find the SWR.
19. The standing waves for open circuit current and short circuit voltage are the same..
20. The reflection coefficient of a short circuit transmission line is -1. State True/False.
21. Which of the following parameters does not exist in the transmission line equation?
22. Calculate the transmission coefficient, when the incident and transmitted amplitudes are 10 and 7 respectively.
23. The primary parameter that is associated with the magnetic flux linkage is
24. The wavelength of a line with a phase constant of 6.28 units is
25. The best transmission length for effective transmission of power is

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