How to practice Linear 2-port network parameters

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–3 of 3. Imported answers require independent review unless marked reviewed.

Topic practice 3 questionsPage 1 of 1

Question 60

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ECNAT2 marksNeeds review
For the two port network shown below, the value of the

parameter (in Siemens) is ______.
Diagram for Electronics and Communication Engineering question 60


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Question 54

Open question
ECNAT2 marksNeeds review
A linear 2-port network is shown in Fig. (a). An ideal DC voltage source of 10 V is connected across Port 1. A variable resistance

is connected across Port 2. As

is varied, the measured voltage and current at Port 2 is shown in Fig. (b) as a

versus

plot. Note that for

V,

mA, and for

V,

mA.
When the variable resistance

at Port 2 is replaced by the load shown in Fig. (c), the current

is ______ mA (rounded off to one decimal place).
Diagram for Electronics and Communication Engineering question 54


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Question 4

Open question
ECMCQ1 markNeeds review
Consider the two-port resistive network shown in the figure.
Diagram for Electronics and Communication Engineering question 4

When an excitation of 5 V is applied across Port 1, and Port 2 is shorted, the current through the short circuit at Port 2 is measured to be 1 A (see (a) in the figure).
Diagram for Electronics and Communication Engineering question 4 (figure 2)

Now, if an excitation of 5 V is applied across Port 2, and Port 1 is shorted (see (b) in the figure),
Diagram for Electronics and Communication Engineering question 4 (figure 3)

what is the current through the short circuit at Port 1?
Your answerChoose one option.

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