EC 8303 – ELECTRONICS DEVICES AND CIRCUITS FOR COMPUTER ENGINEERS April May 2014

B.E (Full Time) DEGREE END SEMESTER EXAMINATIONS, APRIL / MAY 2014, Computer Science and Engineering, Third Semester, EC 8303 – ELECTRONICS DEVICES AND CIRCUITS FOR COMPUTER ENGINEERS

Exam	B.E/B.Tech. (Full Time) DEGREE END SEMESTER EXAMINATIONS
Academic Year	April May 2014
Subject Code	EC 8303
Subject Name	Electronic Devices and Circuits for Computer Engineers
Branch	Computer Science and Engineering
Semester	Third Semester
Regulation	2012

B.E (Full Time) DEGREE END SEMESTER EXAMINATIONS, APRIL / MAY 2014

Computer Science and Engineering

Third Semester

EC 8303 – ELECTRONICS DEVICES AND CIRCUITS FOR COMPUTER ENGINEERS

(Regulation 2012)

Time : 3 Hours                      Answer A L L Questions                Max. Marks 100

PART-A (10 x 2 = 20 Marks)

1. Determine the current through 7Ω resistor in the circuit shown in Fig. 1

2. Determine the equivalent resistance Rin of the network shown in Fig.2.

3. State superposition principle.

4. State Thevenins theorem.

5. What is Zener effect?

6. Differentiate between EMOS and DMOS transistors.

7. State the advantages of negative feedback in amplifier.

8. Write the p-n junction diode current equation under forward bias condition.

9. Write the salient features of operational amplifier.

10. Draw the circuit of a negative feedback opamp used as an integrator.

PART-B (5x16 = 80 Marks)

11. Determine the current i₁ in the circuit shown in Fig.3

12. a. Determine voltage Vx in the circuit shown in Fig.4 using superposition principle. (16)

(OR)

12. b. Determine the maximum power transferred to the load resistor 10Ω shown in Fig.4 using maximum power transfer theorem. (16)

13. a. i. Draw the small signal equivalent circuit of BJT and derive its h-Parameters. (8)

ii. Draw and explain CE configuration of BJT and explain its V-I characteristic. (8)

(OR)

13. b. Explain the principle of operation of MOSFET. Draw its V-I characteristic and explain its various operating regions. (16)

14. a. Explain the principle of operation of common source amplifier and derive its voltage gain. (16)

(OR)

14. b. Explain the principle of operation of common emitter amplifier and derive its small signal voltage gain. (16)

15. a. Derive the gain of inverting and non inverting amplifier using opamp. (16)

(OR)

15. b. Draw the circuit diagram of an ADC using opamp and explain its principle of operation. (16)

Go back to Anna University B.E Computer Science and Engineering Questions April May 2014 Regulation 2012  page

Go back to Anna University B.E Computer Science and Engineering Questions April May 2014  page

Go back to Anna University B.E Computer Science and Engineering Questions page