Anna University Chennai 2003 B.Tech Marine Engineering BASIC ELECTRONICS ENGINEERING - Question Paper

Time : 3 hours Maximum : 100 marks

ans ALL ques..
PART A — (10x2 = 20 marks)

1.How will you obtain the value of Resistor and tolerances using colour code?
2.Explain the term transducer.
3.Explain the concept of Active and Passive Transducer.
4.Explain the basic requirements of Transducer.
5.Mention the advantage of Field Effect Transistor.
6.Explain the principle of photoelectric devices.
7.Explain the electrical characteristics of Operational Amplifier.
8.List the different steps involved in fabrication of IC.
9.Explain the need for Modulation.
10.Mention the principle of MODEM.

PART B — (5x16 = 80 marks)

11.Draw the Block diagram of a Radio and discuss the working principle.
12.(a)Explain the working principle of LVDT. define the basic principles of Hall effect in semiconductors.
Or
(b)Explain the working of Strain gauges. discuss the working principle of any electrical transducer.
13.(a)Draw the circuit diagram of a Full Wave rectifier and discuss the process of working. Compare Half wave and Full wave Rectifiers.
Or
(b)With the help of VI characteristics discuss the working principle of a SCR. discuss the working principle of a PN junction diode with the help of its VI characteristics.
14.(a)With the help of Truth table discuss the working principle of OR, Inverter, NOR and NAND gates.
Or
(b)Explain how an operational amplifier can be used for addition, multiplication, division and subtraction.
15.(a)Draw the block diagram of a Television and discuss the working principle.
Or
(b)Explain the different methods of signal transmission paths. discuss Analog and Digital Modulation.

Earning:   Approval pending.