B.Sc Electronics 2nd Sem LINEAR COMPONENTS AND CIRCUIT ANALYSIS(Acharya Nagarjuna University (ANU), Guntur, Andhra Pradesh-2012)

B.Sc. DEGREE EXAMINATION, MAY 2012.
(Examination at the end of First Year)
Part II – Electronics
Paper I — LINEAR COMPONENTS AND CIRCUIT ANALYSIS
Time : Three hours Maximum : 100 marks
Answer any FIVE questions.
All questions carry equal marks.
1. (a) Derive expressions for R.M.S value of as A.C. voltage.
(b) Write notes on operator ‘j’.
2. (a) State and explain Kirchoffs laws.
(b) State and explain maximum power transfer theorem.
3. (a) State and explain super position theorem.
(b) Derive an expression for energy stored in a Inductor.
4. (a) Discuss the frequency response of RL circuit.
(b) Write short notes on integrator and Differentiators.
5. (a) Derive z and h parameters of a two port network.
(b) Explain the working of De Sauty's Bridge with necessary circuit diagram.
6. (a) Explain the concept of resonance and explain series resonance with necessary theory.
(b) What is ϕ -factor? Give its importance.
7. (a) Explain the working of CRU with necessary block diagram.
(b) What are the characteristics of fluorescent screen?
8. (a) State ohms law and give its limitations. (b) Explain color code in resistors.
9. (a) Explain growth and decay of charge in RC circuit with necessary equations.
(b) Explain time constant in RC, RL circuit.
10. (a) Explain the working of Andersons' Bridge with necessary circuit diagram.
(b) Explain the function of Two-port network.