Q1:

If a two-port network is reciprocal, then we have, with the usual notation, the following relationship

Q2:

The parameter type and the matrix representation of the relevant two port parameters that describe the circuit shown are

Q3:

The following circuit shown in the figure resonates at

Q4:

In the series circuit shown in figure, for series resonance, the value of the coupling coefficient k will be-

Q5:

The parallel RLC circuit shown in figure is in resonance. In this circuit

Q6:

The Norton’s equivalent source in amperes as seen into the terminals X and Y is……. .

Q7:

In the given figure, the Thevenin’s equivalent pair (voltage, impedance), as seen at the terminals P-Q, is given by

Q8:

The theorem which states that in any linear, non-linear, passive, active, time-variant, and time-invariant network, the summation of instantaneous powers is zero will be called as

Q9:

What should be done to find the initial values of the circuit variables in a first-order R-C circuit excited by only initial conditions?

Q10:

In any network the current will be seen to be consisting of a forced current and a natural current. A forced current is

Q11:

In a connected graph, the total number of branches is b and the total number of nodes is n. Then the number of links L of a co-tree is

Q12:

The incidence matrix A of a connected graph is given below:

The following statements are associated with the above matrix:

1. Branches 2, 3 are in series.

2. Branches 4, 5 are in series.

3. Voltages of branches 4, 5 and 6 form an independent set.

Which of the statements given above is/are correct?

Q13:

Two identical coils each having inductance L are placed together on the same core. If an overall inductance of aL is obtained by interconnecting these two coils, the minimum value of a is ……

Q14:

The inductance matrix of a system of two mutually coupled inductors shown in Figure-1 is given by

$L=\left[\begin{array}{cc}5& -4\\ -4& 7\end{array}\right]$

When the inductors are connected as shown in Figure-2, the equivalent inductance of the system is given by

Q15:

A segment of a circuit is shown in figure V_R = 5 V, V_C = 4 sin2t. The voltage V_L is given by

Q16:

In the circuit shown figure, ammeter A₂ reads 12 A and A₃ reads 9 A. A₁ will read……A.

Q17:

The mutual inductances between the three coils are 2H, 1H and 1H. If the dot polarity is at the end of all the coils then the equivalent inductance seen at terminals A – B in figure is …….H.

Q18:

Which of the following are satisfied in a nonlinear network?

1. Associative

2. Superposition

3.Homogeneity

4. Bilaterality

Select the correct answer using the codes given below:

Q19:

The voltage and current waveforms for an element are shown in the figure.

The circuit element and its value are

Q20:

The potential difference V_AB in the circuit is