Download GTU BE/B.Tech 2019 Summer 3rd Sem New 2132003 Design Concepts In Basic Electronics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 3rd Sem New 2132003 Design Concepts In Basic Electronics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?III (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2132003 Date: 07/06/2019

Subject Name:Design Concepts in Basic Electronics

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Comparison between 1?s and 2?s compliments. 03
(b) Explain with circuit diagram positive clamper and negative
clamper.
04
(c) Draw and Explain the working of JK flip-flop. 07

Q.2 (a) State and explain De-Morgan?s theorems. 03
(b) Give the difference between Half wave and Full wave Rectifier. 04
(c) Show that NAND and NOR are universal gate. 07
OR
(c) Explain Digital Logic Gates with Symbol, Algebraic function and
Truth Table.
07
Q.3 (a) Design 3- bit up synchronous counter. 03
(b) Explain in detail bidirectional shift register with parallel load. 04
(c) Draw fixed-bias circuit and explain Collector-Emitter loop. 07
OR
Q.3 (a) What is ripple counter? 03
(b) What is application of C.B configuration? 04
(c) Design a full wave Voltage Doubler Circuit with diodes. 07
Q.4 (a) State the truth table of full-adder and half-adder. 03
(b)
Implement the following function F using Multiplexer:
?? ( ?? , ?? , ?? ) = ?? ? ?? + ?? ?? + ?? ? ?? ?
04
(c) Draw and Explain the working of clocked RS flip-flop 07
OR
Q.4 (a) Define: (i) Extrinsic Semiconductor, (ii) DC Resistance of Diode
, (iii) Barrier Potential
03
(b) Explain forward bias circuit. 04
(c) Compare in detail RTL, DTL, TTL, ECL and CMOS. 07
Q.5 (a) What is energy band diagram? 03
(b) Draw the logic diagram and state truth table of 4x1 multiplexer. 04
(c) With the logic diagram explain the operation of 4-bit binary ripple
counter.
07
OR

Q.5 (a) The emitter current of a transistor is 10 mA. If ?dc =0.99 and ICBO =10
?A calculate the values of IC and IB .
03
(b) Perform the following signed operations. Assume twos complement
numbers. A=10102 , B=01002, Find A-B.
04
(c) Write a note on collector to base bias. 07

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