0000EST130121903
PART 11: BASIC ELECTRONICS ENGINEERING

Max. Marks: 50 Duration: 90 min
PARTA
Answer all questions, each carries 4 marks.
12 What are the different types of capacitors? Find the value of the capacitor

coded as 103.

13 Sketch the energy band diagram of conductors, insulator and semiconductors.
14 With a neat diagram explain the working of an instrumentation system.
15 What is biasing? List the advantages of potential divider biasing.
16 Discuss the need for modulation. (5x4=20)
PART 13
Answer one full question from each module, each question carries 10 marks
Module-IV
17 a) Give the specifications of a resistor. The colour bands marked on a resistor (5)

are Green, Blue, Orange and Gold. What are the minimum and maximum
resistance values expected from that resistance?
b) Explain the working of a diode under forward and reverse biased condition. (5)

Draw its VI characteristics?

OR
18 a) Differentiate between avalanche breakdown and zener breakdown. (4)
b) Narrate the working of an NPN transistor. (6)
Module-V
19 a) Explain the working of a bridge rectifier. (5)
b) Describe the block diagram of a public addressing system. (5)
OR
20 a) Define line regulation and load regulation. (4)
b) Draw the frequency response curve of a CE amplifier and explain. (6)
Module-VI
21 a) Describe the basic principles of a cellular communication system. (5)
b) Write the expression for an AM wave. Draw the frequency spectrum and
find the associated bandwidth? (5)
OR
22 a) What are the advantages of GSM network? (4)
b) Explain the roles of BTS, BSC and MSC in a GSM network. (6)

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