Network Theory 2022 Question Paper — Government College of Engineerin…

The 2022 Network Theory previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.

Instructions

Q1.a. Calculate the equivalent inductance: [5 marks]
Q1.b. Find V, V , & V using nodal analysis shown in fig.1. [10 marks]
Q2.a. Find laplace transform of function shown in fig.2 [10 marks]
Q2.b. Compute using laplace inverse transform: $y''+ 2y + 5y = e^{-t} \sin t$ [10 marks]
Q3.a. In the RL circuit shown in fig 3 the switch in position 1 long enough to establish steady state conditions. At t = 0, the switch is thrown to position 2. Find expression for the resulting current. [10 marks]
Q3.b. Find initial and final value of the function given as i. $F(s) = \frac{5s^3 - 1600}{s(s^3 + 18s^2 + 90s + 800)}$ ii. $F(s) = \frac{4 + (1 - e^{-\theta s})}{s(s+2)}$ [10 marks]
Q4.a. Find the time domain response of the given transfer function. Use graphical method. $Y(s) = \frac{10 s}{s^2 + 10s + 250}$ [15 marks]
Q4.b. Write necessary condition for driving point function. [5 marks]

Q5.a. Obtain z-parameter of fig 4.
Q5.b. Write the expression for cascade and parallel connection of two-port network. [20 marks]
Q6.a. Design T and $\pi$ secion of m-derived high pass filter having design impendence $600\Omega$ cut-off frequency $4\text{KHz}$ and infinite attenuation at $3.6\text{ KHz}$. [10 marks]
Q6.b. Design m-derived low pass filter to match a line having characteristic impedance of $500\Omega$ and to pass signals upto $1\text{KHz}$ with infinite attenuation occurring at $1.2\text{ KHz}$. [10 marks]
Q7.a. An impedance function is given by $Z(s) = \frac{2(s+1)(s+3)}{(s+2)(s+4)}$ Find both the foster forms (I & II). [10 marks]
Q7.b. An impedance function is given by $Z(s) = \frac{(s+4)(s+8)}{(s+2)(s+6)}$ Find both the cauer forms (I & II) [10 marks]
Q8.. Find Y,Z and ABCD parameter for the network shown in fig 5 [20 marks]