DISTANCE EDUCATION
M.Sc. (Physics) DEGREE EXAMINATION, MAY 2017.
INTEGRATED AND DIGITAL ELECTRONICS
(2008 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
Each question carries 20 marks.
20 100)
1. Explain transistor switching time.
Derive the general expression for the collector
efficiency of a power amplifier.
Explain the working of source follower amplifier in
a FET. Calculate its voltage gain.
2. State and explain maximum power transfer
theorem.
What do you understand by transistor biasing?
What is its need?
Derive an expression for
Voltage gain
Input impedance and
Output impedance of an emitter follower.

Sub. Code
13
DE-651
2
Sp 2
3. Discuss any three measurements of an OP-AMP
parameters with the suitable diagram.
List the characteristics of an ideal OP-AMP.
Calculate CMRR of an OP-AMP, which has the
differential gain of 200000 and common mode
of 6.33.
4. Give the block diagram of an operational amplifier.

Discuss the operation of an OP-AMP as
Comparator
Voltage follower.
Write a short note on active filters.
5. What is a logic gate?
State and prove De Morgan's theorems.
What is Boolean Algebra? Explain the Boolean
algebraic operations and state the rules for such
operations.
6. Distinguish between counter and register.
What is RS flip-flop? Explain the action of it.
Explain the operation of Mod-n counters.
7. Elaborate the architecture of 8085
What is the difference between direct and indirect
addressing mode?
What is subroutine? What instruction is used to call
a subroutine?
8. Write a detailed account on fabrication of monolithic
IC's.
What is a solar cell?
What is meant by hall effect? Explain the resistivity
measurement using hall effect.