Jawaharlal Nehru Technological University Hyderabad

Jawaharlal Nehru Technological University Hyderabad B.Tech I ELECTRICAL CIRCUIT ANALYSIS II Previous Question Paper (September - 2023 - R22)

B.Tech | I | I-II | R22 | September - 2023

Answer PaperPaper Code: 182AFMaximum Marks: 60Time: 3 Hours

Note: This question paper contains two parts A and B. Part- A for 10 marks, Part - B for 50 marks. Part-A is a compulsory question. Part-B consists of ten questions (numbered from 2 to 11) carrying 10 marks each. From each unit, there are two questions and the student should answer one of them. Hence, the student should answer five questions from Part-B.

Part A

(10 Marks)

110 marks

The steady state current through 1 H inductor in the circuit shown in the given Figure 1.

1 marks

Answer

In steady state, an inductor acts as a short circuit to DC. The current is determined by the DC voltage source divided by the total series resistance in the path.

Time constant of the network shown in the Figure 2.

1 marks

Answer

The time constant for an RL circuit is τ = L/R_eq, and for an RC circuit is τ = R_eqC, where R_eq is the Thevenin equivalent resistance seen from the terminals of the energy storage element.

Laplace transform e^t sin(t) is__________

1 marks

Answer

The transfer function of the system is given by H(s) = 1 / [s² (s-2)]. The impulse response of the system is

1 marks

Answer

A 2-port network is represented by the following equations: V1 = 60I1 + 20I2; V2 = 20I1 + 40I2. The B and C parameters of the above network would be

1 marks

Answer

A, B, C and D represent the transmission parameters of a two-port network. When is the network reciprocal? ________

1 marks

Answer

How is the exponential Fourier series for the function X(t) represented?

1 marks

Answer

What is Fourier series? i) The representation of periodic signals in a mathematical manner is called a Fourier series ii) The representation of non-periodic signals in a mathematical manner is called a Fourier series iii) The representation of non-periodic signals in terms of complex exponentials or sinusoids is called a Fourier series iv) The representation of periodic signals in terms of complex exponentials or sinusoids is called a Fourier series

1 marks

Answer

Find the cut off frequency for an RC low pass filter of R=8.2Ω and C=0.0033μF?

1 marks

Answer

What is M-derived filter?

1 marks

Answer

Part B

(50 Marks)

In the given circuit (Figure 3), switch K is closed at time t=0. Obtain the expression for the current i(t).

10 marks

Answer

310 marks

What do you mean by transient response of the electrical network? Explain time constant case of parallel RC circuit. Also explain in brief about the step response of parallel RC circuits.

5 marks

Answer

Further in the given circuit (Figure 4) switch K is closed at t=0. Find the values of i, di/dt at t=0+. Given that Vo =10 volts, R= 100 ohms and C=1μF

5 marks

Answer

Find the response current of a series R-L circuit consisting of resistor R= 3 ohms and inductor L=1 Henry when each of the following driving force voltage is applied: a) Unit ramp voltage r(t-2) b) Unit impulse voltage δ(t-2) c) Unit step voltage u(t-2) d) pulse of width "a" and magnitude 1 volt beginning at time t=2.

10 marks

Answer

Find the current i(t) in a series RC circuit consisting of R = 2 Ohms and C=1/4 Farad when each of the following driving force is applied: a) ramp voltage 2r(t-3) b) step voltage 2u(t-3) c) impulse voltage 2δ(t-3).

10 marks

Answer

Find the Z parameters for the resistive network shown in Figure 5.

10 marks

Answer

Find the y parameters for the two-port network shown in Figure 6.

10 marks

Answer

Find out the fourier series of the following function shown in the Figure 7.

10 marks

Answer

The following figure 8 shows a periodic voltage waveform. Determine the Fourier coefficients and plot the corresponding amplitude and frequency spectra.

10 marks

Answer

1010 marks

Design a High-pass filter having a cut-off frequency of 1kHz with a load resistance of 600 Ω.

5 marks

Answer

Design a Band-elimination filter having design impedance of 600Ω and cut-off frequencies f1= 2 kHz and f2= 6 kHz.

5 marks

Answer

1110 marks

Explain in detail about classification of filters.

5 marks

Answer

Explain about Propagation constant and characteristic impedance in T-network filters.

5 marks

Jawaharlal Nehru Technological University Hyderabad B.Tech I ELECTRICAL CIRCUIT ANALYSIS II Previous Question Paper (September - 2023 - R22)

Part A

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Part B

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

Answer

About this paper

Other papers in ELECTRICAL CIRCUIT ANALYSIS II