# Electronics and Communication Engineering - Networks Analysis and Synthesis

1.

Consider the following expression for the driving point impedance

1. It represent on LC circuit
2. It represent on RLC circuit
3. It has poles lying on the jω axis
4. It has a pole at infinite frequency and a zero at zero frequency.
Which one fo the statement given above are correct?

 A. 2 and 4 B. 1 and 3 C. 1 and 4 D. 2 and 3

Explanation:

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2.

Two port network is said to be symmetrical if

 A. Δh = 1 B. Z11 = Z2 C. A = Δ D. all

Explanation:

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3.

For a series resonant circuit at low frequency impedance is __________ and at high frequency circuit impedance is __________ .

 A. capacitive, inductive B. inductive, capacitive C. resistive, inductive D. capacitive, resistive

Explanation:

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4.

If Y(s) = 1 + s, the network has

 A. 1 Ω resistor and 1 F capacitor in series B. 1 Ω resistor and 1 F capacitor in parallel C. 1 Ω resistor and 1 H inductor in series D. 1 Ω resistor and 1 H inductor in parallel

Explanation:

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5.

In a Hurwitz polynomial

 A. all coefficients are non-negative B. both the odd and even parts have roots on jω axis C. the continued fraction expansion is the ratio of odd to even parts of a Hurwitz polynomial yields all positive quotient terms D. all of the above