010BE10104092002 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
B.Tech Degree S1,S2(S,FE) Examination May 2021 (2015 Scheme)

Course Code: BE101-04
Course Name: INTRODUCTION TO ELECTRONICS ENGINEERING

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 5 marks Marks
1 Explain the use of resistors in electronic circuits. List the specifications of a (5)
resistor.
2 Write the diode equation and explain each term. Explain the effect of (5)

temperature in diodes.

3 Compare the performance of CB, CE and CC configurations of a transistor. (5)
4 Explain the working of a UJT. (5)
5 Draw the circuit of a voltage doubler and explain its working. (5)
6 With a block diagram explain the working of an SMPS. (5)
7 What are Lissajous patterns? How the frequency and phase difference can be (5)
measured with Lissajous patterns?
8 How the leads of a transistor can be identified by using a multimeter? (5)
PART ‏تا‎
‎Answer six questions, one full question from each module and carries 10 marks.
MODULE I
9 ஐ Explain the construction and working of an electrolytic capacitor. (6)
b) Compute the value of capacitors coded as 103 and 4K. (4)
OR
10 a) Describe the working of an electromechanical relay. (6)
b) List the applications of various types of transformers. (4)
MODULE II
11 Draw the V-I characteristics of a diode and explain its working during (10)

forward and reverse biased conditions.

OR

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