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Electronics and Communication Engineering (ECE) Exam  >  Electronics and Communication Engineering (ECE) Tests  >  Test: Two Port Network - Electronics and Communication Engineering (ECE) MCQ

Test: Two Port Network - Electronics and Communication Engineering (ECE) MCQ


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15 Questions MCQ Test - Test: Two Port Network

Test: Two Port Network for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Test: Two Port Network questions and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus.The Test: Two Port Network MCQs are made for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Two Port Network below.
Solutions of Test: Two Port Network questions in English are available as part of our course for Electronics and Communication Engineering (ECE) & Test: Two Port Network solutions in Hindi for Electronics and Communication Engineering (ECE) course. Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free. Attempt Test: Two Port Network | 15 questions in 45 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
Test: Two Port Network - Question 1
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[T] = ?

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Detailed Solution for Test: Two Port Network - Question 1

Let I3 be the clockwise loop current in center loop
 V2 = 4(I2 + I3) ⇒ I3 = 0.25V2 - I2
⇒ I1 = 0.35V2 - I2  .........(i)
V1 = 4I1 - 0.2V1 + V2
1.2V1 = 4(0.35V2 - I2) + V2 = 2.4V2 - 4I2
⇒ V1 = 2V2 - 3.33I2 .........(ii)

Test: Two Port Network - Question 2
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[H] = ?

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Detailed Solution for Test: Two Port Network - Question 2

 

 ..........(i)

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Test: Two Port Network - Question 3
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[Y] = ?

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Detailed Solution for Test: Two Port Network - Question 3

I1 = (V1 - V2) Yab + V1Yab 

⇒ I1 = V1(Ya + Yab) - V2Yab .....(i)

I2 = (V2 - V1)Yab + V2Yb = -V1Yab + V2(Yb + Yab) .....(ii)

Test: Two Port Network - Question 4
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The y-parameters of a 2-port network are 

A resistor of 1 ohm is connected across as shown in fig. The new y –parameter would be

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Detailed Solution for Test: Two Port Network - Question 4

y-parameter of 1Ω resistor network are

New y-parameter

Test: Two Port Network - Question 5
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For the 2-port of fig. 

  

The value of vo/vs is 
Detailed Solution for Test: Two Port Network - Question 5


  V1 = 600I1 + 100I2 , V2 = 100I1 + 200I2
Vs = 60I1 + V1 = 660I1 + 100I2 , V2 = Vo = -300I2

Test: Two Port Network - Question 6
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The T-parameters of a 2-port network are 

If such two 2-port network are cascaded, the z –parameter for the cascaded network is
Detailed Solution for Test: Two Port Network - Question 6

 ​

   .......(i)
 ........(ii)

Test: Two Port Network - Question 7
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[y] = ?

​ ​ ​
Detailed Solution for Test: Two Port Network - Question 7



Test: Two Port Network - Question 8
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Which among the following is regarded as short circuit forward transfer admittance?
Test: Two Port Network - Question 9
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h21 = ?
Detailed Solution for Test: Two Port Network - Question 9

Test: Two Port Network - Question 10
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In the circuit shown in fig. P.1.10.34, when the voltage V1 is 10 V, the current I is 1 A. If the applied voltage at port-2 is 100 V, the short circuit current flowing through at port 1 will be
Detailed Solution for Test: Two Port Network - Question 10


Interchaning the port  

Test: Two Port Network - Question 11
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For a 2-port symmetrical bilateral network, iftransmission parameters A = 3 and B = 1Ω , the value ofparameter C is
Detailed Solution for Test: Two Port Network - Question 11

For symmetrical network A = D = 3

For bilateral AD - BC = 1, 9 - C = 1,C = 8 S

Test: Two Port Network - Question 12
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A network has 7 nodes and 5 independent loops. The number of branches in the network is
Test: Two Port Network - Question 13
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The circuit shown in fig. is reciprocal if a is
Detailed Solution for Test: Two Port Network - Question 13

V1 = 0.5V1 + I1 + 2(I1 + I2) + aI1
⇒ V1 = (6 + 2a)I1 + 4I2 ......(i)
V2 = 2(I1 + I2) + aI1 ⇒ V2 = (2 + a)I1 + 2I2 ......(ii) 
For reciprocal network
z12 = z21, 4 = 2 + a ⇒ a = 2

Test: Two Port Network - Question 14
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Zin = ?
Detailed Solution for Test: Two Port Network - Question 14

I1 = 4 x 103V1 -0.1 x 10-3V2
I2 = 50 X 10-3V1 + 10-3V2 ,V2 = -103I2

- 10-3V2 = 50 x 10-3V1 + 10-3V2, V2 = -25V

Test: Two Port Network - Question 15
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v1 ,v2 = ?
Detailed Solution for Test: Two Port Network - Question 15

I1 = 10 x 10-3V1 -5 x 10-3V2, 

100 = 25I1 + V1 
100 - V1 = 0.25V1 - 0.25V2 ⇒ 800 = 10V1 - V2   ....(i)
I2 = 50 x 10-3V1 + 20 x 10-3V2, V2 = -100I2
V2 = -5V1 -V2 ⇒ 3V2 + 5V1 = 0  ....(ii)
From (i) and (ii) V1 = 68.6 V, V2 = -114.3 V.

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