Reg 210.2 न 02000EE20109200Hme:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Third Semester B.Tech Degree (S,FE) Examination January 2022 (2015 Scheme)

Course Code: EE201
Course Name: CIRCUITS AND NETWORKS

Max. Marks: 100 Duration: 3 Hours
PART A
Answer all questions, each carries 5 marks. Marks
1 State and explain superposition theorem with an example. (5)
2 For the circuit shown below, draw the oriented graph and find the complete and (5)

reduced incident matrices.

bee 1

17 2F |
॥ | = 80
240 ہ٥‎
10A
1H
3 A series RLC circuit has L = 1H and C = 1F. Determine (i) the value of the (5)

resistance R so that the circuit becomes critically damped and (ii) the expression
for the current if the capacitor has an initial voltage of 10V and is discharged

through the resistor and inductor.

4 The current through a 2F capacitor is given by the following s-domain equation. (5)
25 + 4
15) ` 52 + 45 +3

Determine the voltage across the capacitor, v(t).
5 Derive the conditions of symmetry and reciprocity of a two port network in (5)

terms of transmission parameters.

6 A two-port network ‘A’ has [Z], = ۶ 2] and another two port network ‘B’ (5)
_ [1% -1 ⋅⋅
∤↿∂≤∏∣↕∄− | ` 2 3 | If the two networks A and B are connected in series,
find the Z parameters of the overall network.
7 Test whether the polynomial s* + 253 + 692 + 3s + 4 is Hurwitz or not. (5)

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