2005 Anna University Chennai B E Electrical and Electronics Engineering EC 1203 ELECTRONIC CIRCUITS I Question paper for exam preparation. Question paper for 2005 Anna University Chennai B E Electrical and Electronics Engineering EC 1203 ELECTRONIC CIRCUITS I Question paper, 2005 Anna University Chennai B E Electrical and Electronics Engineering EC 1203 ELECTRONIC CIRCUITS I Question paper. SiteMap
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2005 Anna University Chennai B E Electrical and Electronics Engineering EC 1203 ELECTRONIC CIRCUITS I Question paper

University Question Papers
2005 Anna University Chennai B E Electrical and Electronics Engineering EC 1203 ELECTRONIC CIRCUITS I Question paper
B.E/ B. TECH. DEGREE EXAMINATION, MAY / JUNE 2007

Third Semester

(Regulation 2004)

Electrical and Communication Engineering

EE 1203 ELECTRONIC CIRCUITS – I
(Common to B.E (Part Time) Second Semester
(Regulation 2005)

Time: three hours Maximum : 100 Marks

Answer ALL questions

PART A – ( 10 * 2= 20 Marks)

1. Draw the fixed bias and the self bias circuit.
2. Define the three stability factors.
3. Define the various h – parameters in a transistor.
4. Define CMRR in a differential amplifier?
5. What is Band width of an amplifier?
6. Define Rise time of an amplifier?
7. What is conversion efficiency in a power amplifier?
8. What is cross over distortion in a power amplifier?
9. Define the ripple factor for a Half wave and Full wave rectifier?
10. Draw the block diagram of a Switched Mode Power Supply.

PART B (5* 16 = 80 Marks)

11 (a). Derive equations for the three stability factors. (16)
Or
12 (a). Discuss in detail how the current gain, input impedance, voltage gain and output
Impedance of a transistor amplifier can be obtained using h – parameters. (16)
Or
(b) Discuss the operation of the emitter coupled differential amplifier. (16)
13.(a) Draw the hybrid Pcommon emitter transistor model at high frequencies and
derive the values of all the components in terms of the h
parameters. (16)
Or
(b) Discuss the low frequency response and high frequency response of an amplifier.
(16)
14.(a) Discuss the transformer coupled audio power amplifier.
Or
(b) Discuss the class B push pull power amplifier. (16)
15.(a) Discuss in detail the electronically regulated D.C power supplies. (16)
Or
(b) Derive the ripple factor for the following types of filters:

(1) C
(2) L
(3) LC
(4) CLC
(4*4)


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2005 Anna University Chennai B E Electrical and Electronics Engineering EC 1203 ELECTRONIC CIRCUITS I Question paper for exam preparation. Question paper for 2005 Anna University Chennai B E Electrical and Electronics Engineering EC 1203 ELECTRONIC CIRCUITS I Question paper, 2005 Anna University Chennai B E Electrical and Electronics Engineering EC 1203 ELECTRONIC CIRCUITS I Question paper