Roll. No…………………………
Q.7 a) Find f(0) and f(∞) using initial and final value theorem
for the function given below:F(s) =
(8)
(b) Find the response of the system whose system function
(6*2)
H(s) =
(i) X(t) = d(t) (i.e. Impulse Function)
(ii) X(t)= e-2t
1223006
B.Tech / Int (MBA/M.Tech) 3rd Semester (ECE) Examination
June 2014
Network Analysis and Synthesis
Subject Code: EEL-201
Time Allowed: 03 hours.
Maximum Marks: 100
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Before answering the question paper the candidate should ensure
that they have been supplied the correct question paper. Complaints
in this regard, if any, shall not be entertained after the examination.
Note: Question No. 1 is Compulsory and attempt two questions from
each section. All questions carry equal marks.
Q.1 Write short notes on following
a) Source Transformation
b) Superposition Theorem.
c) Applications of graph theory.
d) Co- tree & network topology
e) Hybrid parameters
(4*5)
SECTION -A
Q.2 (a) Write the equation for converting a Star Network to Delta
Network and vice-versa for an Inductor and a Capacitor with
proper conversion diagrams.
(8)
(b) Find I1, I2 and V in the circuit shown in figure:-
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(12)
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1223006-P-4-Q-7
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Q.3(a) At what value of VA, Power delivered from Source to Load
is max.
(10)
(b ) In the circuit given below, at time t0 after the switch was
closed, it was found that v2=+5v. We are required to
di2
determine the values of i2 (t0) and /dt
(10)
(b) State Millman’s Theorem. Find the Current I using
Millman’s Theorem.
(10)
Q.4 (a) Define TREE of a connected graph. State its properties.
State at least 4 different trees of the following graph. (8)
(b) Define the following:-
i) Node ii) Link, iii) Twig,
v) Cutset, vi) Loop
Q.6 (a) Obtain the y-parameter of the circuit shown in the fig.
below. Also draw its equivalent circuit using y-parameter
and comment on reciprocity and symmetry of the circuit.
(10)
(2*6)
iv)Co-Tree,
(b) Obtain the z and y parameters of the network shown
below:(10)
SECTION -B
Q.5 (a) In the network shown, K is changed from position a to b at
t=0. Solve for I, di/dt, d2i/dt2 at t=0+, if R= 1000Ω, L= 1H,
C= 0.1µF and V=100 V. Assume that the Capacitor is
initially uncharged
(10)
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