Download GTU BE/B.Tech 2019 Summer 1st And 2nd Sem (New And SPFU) 3110016 Basic Electronics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 1st And 2nd Sem (New And SPFU) 3110016 Basic Electronics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?I &II (NEW) EXAMINATION ? SUMMER-2019
Subject Code: 3110016 Date: 07/06/2019

Subject Name: Basic Electronics

Time: 10:30 AM TO 01:00 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) Differentiate between insulator, conductor and semiconductor 03
(b) Explain forward bias PN junction diode with diagram
junction di
04
(c) Explain full wave bridge rectifier with neat diagram 07

Q.2 (a) Explain LED diode 03
(b) State different types of diodes. Describe process of testing diode with multi
meter.
04
(c) What is break down diode?? Explain working of zener break down and
avalanche break down
07
OR
(c) Why biasing is important in transistor? Explain voltage divider bias with
diagram.
07
Q.3 (a) What is use of coupling and bypass capacitor? 03
(b) Explain PIN photo diode 04
(c) Draw the circuit of transistor in CE configuration. Sketch the output
characteristics and explain active, saturation and cutoff regions
07
OR
Q.3 (a) What is varactor diode? How capacitance of a diode varies with reverse
voltage?
03
(b) Explain AC loadline with respect to BJT 04
(c) Compare CE, CB and CC configuration with respect to different transistor
characteristics
07
Q.4 (a) What is FET? State important features of FET. 03
(b) Compare BJT and FET 04
(c) Write short note on MOSFET. 07
OR
Q.4 (a) Explain clipping circuit 03
(b) Explain (i) Unipolar device (ii) Transconductance 04
(c) Write shortnote on JFET 07
Q.5 (a) Draw the symbol of NPN and PNP transistor. What is use of transistor? 03
(b) Among TTL and CMOS digital logic family which one is better and why? 04
(c) Draw symbol and explain truth table of all basic logic gates 07
OR

Q.5 (a) State advantage of transistor 03
(b) Explain (i)universal gate (ii) EX-OR logic gate 04
(c) Give comparison between different types of digital logic families 07

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