FILL IN THE BLANKS 11. The formula for input impedance of a lossless transmission line is__________ 12. The formula for reflection co-efficient (in terms of impedances) of a transmission line is__________ 13. The maximum value of input impedance of a transmission line is__________ 14. The minimum value of input impedance of a transmission line is__________ 15. For a matched transmission line the input impedance is equal to__________ TRUE OR 16. For a lossless line the necessary condition to be satisfied is R=G=0. [ ] 17. Telephone lines are required to be distortion less lines. [ ] 18. A distortion less line can be a lossless line. [ ] 19. A long line can be called as a quarter wave transmission line. [ ] λ/2 20. For a short circuited line the reflection coefficient is -1. [ ] Q.NO. ANSWER Q.NO. ANSWER 11 1 B 2 B 12 13 3 C 14 4 B 15 (characteristic Impedance) 5 B Q.NO. ANSWER 6 B 16 TRUE 7 B 17 TRUE 8 C 18 FALSE 9 A 19 FALSE 10 C 20 TRUE
FILL IN THE BLANKS 11. The formula for input impedance of a lossless transmission line is__________ 12. The formula for reflection co-efficient (in terms of impedances) of a transmission line is__________ 13. The maximum value of input impedance of a transmission line is__________ 14. The minimum value of input impedance of a transmission line is__________ 15. For a matched transmission line the input impedance is equal to__________ TRUE OR 16. For a lossless line the necessary condition to be satisfied is R=G=0. [ ] 17. Telephone lines are required to be distortion less lines. [ ] 18. A distortion less line can be a lossless line. [ ] 19. A λ/2 long line can be called as a quarter wave transmission line. [ ] 20. For a short circuited line the reflection coefficient is -1. [ ] Q.NO. ANSWER Q.NO. ANSWER 1 B 11 2 B 12 3 C 13 4 B 14 5 B 15 (characteristic Impedance) 6 B Q.NO. ANSWER 7 B 16 TRUE 8 C 17 TRUE 9 A 18 FALSE 10 C 19 FALSE 20 TRUE