JNTU B.Tech II NETWORK ANALYSIS Previous Question Paper (February - 2024 - R16)

What is the difference between planar and non-planar graphs?

A toroidal air cored coil with 2000 turns has a mean radius of 25 cm, the diameter each turn being 5 cm. If the current in the coil is 10A, find the mmf.

What do you mean by half power frequencies and bandwidth?

What is the time constant of the circuit as shown in Figure. 1.

A unit impulse voltage is applied at t=0 to the R-L circuit shown in Figure.2 while i(0-)=1 A. What is the expression for i(t)?

Determine the RMS value of the periodic wave as shown in Figure.3 below?

Draw the equivalent circuit of a two port network in terms of Z-Parameters.

What is a driving point function? Explain the necessary conditions for driving point functions.

State the properties of LC networks.

What is input impedance and characteristic impedance?

The cutest matrix of a network graph is follows. Draw the network graph corresponding to it.

Determine the effective inductance (Leq) as seen from the terminal a-b as shown in Figure.4

For the circuit of Figure.5 contains a voltage controlled voltage source. For this circuit, draw the oriented graph. By selecting a proper tree, obtain the tie-set matrix and hence calculate the voltage Vx.

Two coils offer an equivalent inductance of 0.8 H when connected in series aiding and 0.4 H in series opposing. Determine the self-inductance of the coils. Assume the coefficient of coupling be 0.55.

At time t=0, the switch S is thrown from b to a of the circuit as shown in Figure.6. What are the values of v(0+) and i(0+).

A 0.8µF capacitor is in parallel with a coil that has a resistance of 4Ω and an inductance of 0.2H determine i) Q-factor at resonance and ii) Input impedance at resonance

A series RL circuit with R = 10 ohms and C = 1 F has a d.c voltage source V=200 volts applied at a time t=0. Find the expression for the total current. Use differential equation method.

A pure inductance of 150 mH is connected in parallel with a 40 μF capacitor across a 50 V, variable frequency supply. Determine i) the resonant frequency of the circuit and ii) the current circulating in the capacitor and inductance at resonance.

Derive the transient response for parallel RC circuit for DC excitation using Laplace approach.

For the R-L circuit as shown in Figure.7, determine the current i(t) for unit step input?

Find the unit-impulse response of the RC circuit as shown in Figure.8, with V1 as the input V2 as the output.

In the network of Figure.9 determine Vk(0+), and i(0+).The network was in steady state when the switch K is opened at t=0.

Calculate the h-parameters for the following network as shown in Figure.10 then determine the Z-parameters for the same network using inter-relations

The transform voltage V(s)of a network is given by. Plot its pole-zero diagram and hence obtain v(t).

For the two port circuit shown in Figure.11 find the i) Z parameters and ii) Y-parameters.

Find the driving point admittance function Y(s) for the network shown in Figure.12 and also plot the polezero diagram.

Design constant-k T-section and П-section low pass filter having cutoff frequency fc=2 kHz and nominal impedance of Ro = 600Ω.

It is desired to design a symmetrical T- attenuator to give an attenuation of 60 dB so that it works into a load of 400 Ω resistance. Find the value of R1 and R2.