Download AKTU B-Tech 3rd Sem 2017-2018 REE305 Network Analysis And Synthesis Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 3rd Semester (Third Semester) 2017-2018 REE305 Network Analysis And Synthesis Question Paper

Printed Pages: 02 Sub Code: REE305
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B. Tech.
(SEM. III) THEORY EXAMINATION 2017-18
NETWORK ANALYSIS AND SYNTHESIS
T ime: 3 Hours T otal Marks: 70
Note: 1. Attempt all Sections. Assume missing data if any.
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1. Attempt all questions in brief. 2 x7 = 14
a. Write two properties of Complete Incidence matrix.
Write Hybrid parameters in terms of Z parameters.
State two properties of the R?L driving point Impedance
function
Describe the following: Tree, Co-Tree, Twig, Link, Cut-set and Tie set.
State and describe the properties of RL and RC DPI Network.
State and describe thevenin theorem with suitable example.
Describe complex frequency in brief.
Write the Z parameters for the given network.
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2. Attempt any three of the following: 7 x 3 = 21
a. For the given reduced incidence matrix. Draw thegraph and hence obtain the f?
cutset matrix
0 0 I 1 l 0 ?l
0 I 0 0 ?l l l
-1 0 l 0 O -l 0
b. For the network shown in Fig below drawthe directed graph. And also find
number possibletree.
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c. Find current through 50 resistor using Thevenin's theorem.
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(1. Test whether the polynomial P(s) is Hurwitz or not.
(1) s5 + 352 + 25
(ii) 34 + 533 + 532 + 43 +10.
e. Find Y and Z parameters of the network.
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SECTION C
3. Attempt any one part of the following: 7 x 1 = 7
(a) State the properties of RL driving point impedance function .Also realize the given
network impedance function using F oster form I
Z(s)= (s+l)(s+3) / (s+2)(s+4)
(b) Explain the advantage of active filter in comparison to passive filter in detail.
4. Attempt any one part of the following: 7 x 1 = 7
(a) For the given network function, draw the pole zerodiagram and hence obtain the
time response I(t)
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[(5) = (5 +l)(s2 +45 +8)
(b) Design constant K low pass T and nsectionfilters to be terminated in 600 Q having
cut?offfrequency 3 kHz.
5. Attempt any one part of the following: 7 x 1 = 7
(a) Determine the currents in all the 'branches of thenetwork shown in fig.8 using
node analysis methodof the graph theory.
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(b) Explain following terms with reference to network topology
(1') Tree
(ii) Co-tree
(iii) Incidence matrix
(iv) Oriented graph
(V) Twig and link
6. Attempt any one part of the following: 7 x 1 = 7
(a) Sketch the following signals:-
1). t2[U(t-1)-U(t-3)]
ii). (t-4)[U(t-1)?U(t-4)]
(b) In the circuit shown V(t) =2u(t) and iL(O-) = 2 amps. F ind andsketch 12(t).
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7. Attempt any one part of the following: 7 x 1 = 7
(a) State and prove the maximum power transfertheorem applied to the AC circuits.
(b) Determine the current in capacitor C by the principleof superposition of the
network shown below
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