Phase velocity is

1.  12.6x109 m/s

2.  3.14x108 m/s

3.  20x107m/s

4.  5x107 m/s

View Answer  
4
Correct Answer :

5x107 m/s


Explanation :
No Explanation available for this question

Three lossless lines are connected as shown in figure. The input impedance Zin at A is

1.  46-j69Ω

2.  39-j57Ω

3.  67+j48Ω

4.  61+j52Ω

View Answer  
4
Correct Answer :

39-j57Ω


Explanation :
No Explanation available for this question

For a short-circuited coaxial transmission line, characteristic impedance, Z0=35+j49Ω propagation constant, γ= 1.4+j5 length of line, Input impedance of short-circuited line is

1.  82+j39Ω

2.  41+j78Ω

3.  68+j46Ω

4.  34+j23Ω

View Answer  
4
Correct Answer :

82+j39Ω


Explanation :
No Explanation available for this question

Characteristic impedance Z0 is

1.  400Ω

2.  200 Ω

3.  100 Ω

4.  70 Ω

View Answer  
4
Correct Answer :

100 Ω


Explanation :
No Explanation available for this question

SWR is

1.  2.08

2.  1.63

3.  2.44

4.  1.93

View Answer  
4
Correct Answer :

2.08


Explanation :
No Explanation available for this question

The input impedance Zin at the generator is

1.  36+j32.4Ω

2.  8+j16.2Ω

3.  35-j24.8Ω

4.  54-j26.4Ω

View Answer  
4
Correct Answer :

35-j24.8Ω


Explanation :
No Explanation available for this question

At sending end is

1.  j29.4Ω,2.681020 V

2.  j40.3Ω,5.75?-1020 V

3.  j29.4Ω,5.75?102 V

4.  j40.3Ω,2.68?-1020 V

View Answer  
4
Correct Answer :

j29.4Ω,5.75?102 V


Explanation :
No Explanation available for this question

At receiving end is

1.  j40Ω,5.75109.60 V

2.  j40Ω,5.75?-109.60 V

3.  60-j43Ω,5.75?109.60 V

4.  60-j43Ω,5.75?-109.60 V

View Answer  
4
Correct Answer :

j40Ω,5.75109.60 V


Explanation :
No Explanation available for this question

At 4 m from the load is

1.  -j1436Ω,6.75-1670 V

2.  j1436Ω,6.75?1670 V

3.  -j3471Ω,5.75?1670 V

4.  j3471Ω,5.75?1670 V

View Answer  
4
Correct Answer :

-j3471Ω,5.75?1670 V


Explanation :
No Explanation available for this question

Two λ/4 transformer in tandem are to connect a 50Ω line to a 75 Ω load as shown in figure. If Z02=30Ω and there is no reflected wave to the left of A, then the characteristic impedance Z01 is

1.  28Ω

2.  56Ω

3.  49Ω

4.  24.5Ω

View Answer  
4
Correct Answer :

24.5Ω


Explanation :
No Explanation available for this question
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