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Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIRST SEMESTER B.TECH DEGREE EXAMINATION, JANUARY 2017

Course code: EC100
Course Name: BASICS OF ELECTRONICS ENGINEERING

Max. Marks: 100 Duration: 3 Hours

PARTA
Answer ALL questions. Each carries 2 marks

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Write any four applications of electronics in the field of communication.

Write down the capacitance values given in coded form as follows: (a) 104, (b) 2M2
What is the property of an inductor?

How a n-type semiconductor is formed?

Derive the relationship between 0 and 8.

How does avalanche breakdown differ from zener breakdown?

What do you mean by ripple factor? Find the ripple factor for full wave rectifier.

Compare positive feedback and negative feedback.

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‎Which are the important desirable characteristics of an amplifier?

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‎. Realize XOR gate using any one of the universal gates.

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‎. Differentiate between input offset current and input bias current and write down the
nominal values of these currents for an ideal op-amp.

‎12. Draw the basic block diagram of an electronic measuring instrument and write the

‎functions of each block.

‎13. What is the need for modulation?

‎14. Write any four advantages of FM.

‎15. What do you mean by geostationary satellite?

‎16. What is meant by superheterodyning?

‎17. Expand the following: SIM, MIN, MSC, PSTN related to cellular communication system.

‎18, What is meant by total internal reflection?

‎19. Write down the steps in the process of roaming.

‎20. Write the applications of CCTV.

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