Reg No.: Name:
86 7
APJ ABDUL KALAM TE {14 LOGICAL UNIVERSITY

Third Semester B.Tech Degree Examination December 2020 (2019 Scheme)

Course Code: EET201
Course Name: CIRCUITS AND NETWORKS

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions. Each question carries 3 marks Marks
1. State and explain maximum power transfer theorem in DC circuits. (3)
2. Replace the network given below with a single current source and a resistor. (3)
2 A
6A 20
20V 100
8
3. Explain the classification of series RLC circuits based on damping ratio. (3)

4. Obtain the expression for the voltage across a capacitor discharging through a (3)
resistor of resistance R. Assume that the initial voltage of the capacitor is Vo.

5. Determine the voltage v(t) across a 2Q resistor, if the current is given by,. (3)
25 + 4

I(s) = 52 + ‏و4‎ + 8

5“ + 45 + 3
6. Derive the s-domain equivalent circuit of a capacitor having an initial voltage of Vo. (3)
7. Explain the phenomenon of neutral shift in three phase 3 - wire systems. (3)
8. Derive an expression for the Q- factor of series resonant circuits. (3)
9. Express ABCD parameters in terms of Z parameters. (3)

10. Determine whether the two port network represented by the following network (3)
equations is reciprocal.

۷ = 31 - 21 2
11 = 472 - 312
PART B
Answer any one full question from each module. Each question carries 14 marks
Module 1
11 For the network given below,
a) Obtain the Thevenin’s equivalent circuit across the terminals A and B. (10)

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