D 10684 (Pages : 3) வாரி? அவைத்‌ வைக

FIFTH SEMESTER U.G. DEGREE EXAMINATION, NOVEMBER 2021
(CBCSS—UG)
Physics/Applied Physics
PHY 5B 09/APH 5B 09—ELECTRONICS (ANALOG AND DIGITAL)
(2019 Admissions)

Time: Two Hours Maximum : 60 Marks
The symbols used in this question paper have their usual meanings.

Section A

Answer at least eight questions.
Each question carries 3 marks.
All questions can be attended.
Overall Ceiling 24.

Define ripple factor of a rectifier. What is its value for a full wave rectifier ?
Explain the working of a x -filter.
Mention the merits of R-C coupled amplifiers.
Explain the decibel system of expressing power gain.
What is the role of a coupling capacitor in a multistage transistor amplifier ?
List down the advantages of negative feedback.
Define Common Mode Rejection Ratio (CMRR).

Explain the principle of an op-amp differentiator.

ಜು அப்த ‏سز ^ ٹت‎

Convert the following decimal numbers into its binary equivalents.
(8) 13.7. (b) 0.85.
10. Subtract 1010 from 1101 using 1’s complement method.
11. Why NAND gate is called ‘a’ miversal gate ?
12. What is meant by toggle condition in JK flip flops ?
(8 x 3 = 24 marks)

Turn over

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