Master of Science I (Physics Material Science)
Examination: Oct Nov 2016 Semester I (Old CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SH
539
Monday
21/11/2016
10:30 AM
to
01:00 PM
Analog and Digital
Electronics
C
III
Instructions: Q.No.1 and 2 are compulsory.
Answer any three questions from Q.No.3 to Q.No.7.
Figures to the right indicate full marks.
Use of non programmable calculator is allowed.
Total Marks: 70
Q.1 Choose the correct alternative: 08
The gain of voltage follower is
2 1
100 0.5
An op-amp has a voltage of 200,000. If the output voltage is 1v, the input
voltage is
The 8085 p is bit.
8 16
32 64
When a square wave input is given to an op-amp integrator, the output will
be
Ramp Sinusoidal wave
Rectangular wave Triangular wave
Wein bridge oscillator can typically generate frequencies in the range

1 KHz to 1 MHz 1 MHz to 10 MHz
10 MHz to 100 MHz 100 MHz to 150 MHz
In Boolean algebra A AB
A B A
A.B B
The OR gate is used for Boolean
Multiplication Addition
Complement MOD 2 Addition
The bandwidth in case of negative feedback.
Decreases Increases
Remains the same All of these
Page 1 of 2
State whether following statements are True or False Fill in the blanks: 06
If there are 4-bits in a binary word, 4 flip-flops are required to store binary
information.
The 8085 p has 16 numbers of flags.
The large signal bandwidth of an op-amp is limited by its slew rate.
An ideal op-amp has infinite input impedance.
The Barkhausen's criterion for getting sustained oscillation is A<1.
For battery power application switching regulator play an important role.
Q.2 Attempt the following. 14
Explain in brief different addressing modes of 8085 p.
Explain karnaugh map representation of logical functions.
Write an ALP to find out division of 4-bit numbers using 8085 p
instructions.
Q.3 Draw architecture of 8085 State functions of accumulator and ALU. 10
What is an oscillator? Explain the Barkhausen criteria for sustained oscillation. 04
Q.4 Explain in detail the shunt switching regulator with its advantages and
disadvantages.
10
Define: 04
Bandwidth
CMRR
Slew rate
Input offset voltage
Q.5 Draw the circuit of an astable mutivibrator using op-amp and explain its
working.
10
Explain in brief adjustable voltage regulator. 04
Q.6 Explain the operation of a Wein bridge oscillator with suitable circuit diagram. 08
Simplify the following equation using k-map. 06
Q.7 Explain with a neat diagram the working of JK flip-flop 08
Reduce the following expression using Boolean relations. 06