Friday, January 28, 2022

Dr.A.P.J.Abdul Kalam University BE LATERAL III SEM ALL BRANCH Analog Electronics (EX223) Dec - 2020 Question Papers

Dr.A.P.J.Abdul Kalam University

Bachelor of Engineering

Third Semester Main Examination, Dec-2020

Analog Electronics (EX223)

Branch-EX

Time: 3:00 Hrs Max Marks 70

Note: Attempt any five questions.

Q.1 (a) What is P-N Junction? Explain its temperature dependence and break down characteristics.

(b) What is Diode? Explain all types of diodes and its applications.

Q.2 (a) Explain oscillator? Explain sinusoidal oscillators with suitable diagram.

(b) Explain in detail depletion node of operation in MOSFET?

Q.3 (a) Define multivibrators? Write and explain various types of multivibrators.

(b) What is voltage to current and current to voltage converters.

Q.4 (a) Explain transistor as an amplifier with a suitable diagram.

(b) Define MOSFET? Write its type with symbols and diagram.

Q.5 (a) Explain in detail 555 timers? Write its application.

(b) Explain Wien Bridge and Crystal Oscillators.

Q.6 (a) Explain MOSFET? Write a difference between MOSFET and BJT.

(b) Explain Thermal Runway?

Q.7 (a) Define amplifier? Explain in detail class A amplifier.

(b) What is rectifier? Write basic difference between half wave and full wave rectifier with waveforms.

Q.8 (a) Explain clipper and clamper circuit?

(b) Write short note on:

(i) OP-amp

(ii) Push Pull Amplifier

(iii) Thermal Stability

(iv) Active Filter

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