B.TECH - Semester 3 network analysis Question Paper 2020 (feb)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- Determine the voltages at nodes I and 2 of the network shown by node analysis.
- Explain Millman theorem.
- State and prove final value theorem.
- Explain the concept of complex frequency.
- Write on the restrictions on the location of poles and zeros of a network function in the s plane.
- Derive the expressions for $Z$-parameters of a two port network in terms of Y- parameters.
- What are magnitude and phase plots? Explain with relevant figures.
- Discuss the properties of RL impedance and RC admittance functions.
- Determine the quality factor of series RLC circuit R $=100 \Omega, L=0.1 \mathrm{H}$ and $\mathrm{C}=100 \mu \mathrm{~F}$.
- Explain the frequency transformation to High pass and Band pass in analog filter design. Answer any two questions from each module. Each question carries $\mathbf{1 0}$ marks.
- Obtain Thevenin and Norton equivalent circuits at terminals AB of the circuit
- A voltage pulse of 10 V magnitude and $5 \mu \mathrm{~s}$ duration is applied to the RC network shown in fig. Find current $i(t)$ 2
- Find the initial and final value of the following functions (a) $\frac{s-1}{(s+1)(s+2)}$
- Find the initial and final value of the following functions (b) $\frac{1}{s^{2}+4 s+5}$ Also find the inverse Laplace transforms of the above functions.
- For the ladder network shown in figure below : (a) Obtain driving point impedance function at the port-1
- For the ladder network shown in figure below : (b) Find the voltage transfer ratio $\frac{v_{2}(s)}{v_{1}(s)}$.
- Obtain pole zero plot in the s-plane of the driving point impedance function for the network shown.
- Determine the transmission parameters of the network
- A coil of resistance $15 \Omega$ and inductance 1 H is connected in parallel with a capacitor of $25 \mu \mathrm{~F}$. Compute the frequency at which the circuit will behave as a non-inductive resistance of $R$ ohms. Find also the value of $R$ ?
- Obtain Thevenin equivalent circuit at the terminal $a b$ for the coupled circuit shown in fig.
- Design a Chebyshev filter with a maximum pass band attenuation of 2.5 dB at $\Omega p=20 \mathrm{rad} / \mathrm{s}$ and the stop band attenuation of 30 dB at $\Omega s=50 \mathrm{rad} / \mathrm{s}$.