BSc IT Sem I 2017 18 2017-18 ETCS Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q2 All Questions are compulsory
2. Q3 Right side indicates marks 2.1 Answer any 2 from following Draw and explain PN junction Forward bias
3. Q2 Explain transistor as a switch in detail
4. Q3 Write a short note on Zener diode
5. Q4 Explain transistor as an amplifier,
6. Q2 Answer any 2 from following Explain the amplifier notations
7. Q2 Draw and explain frequency response of single stage amplifiers
8. Q3 Draw and explain DC amplifier
9. Q4 Draw and explain Darlington pair Answer any 2 from following an Astable circuit, Ra= 2KQ, 3KQ = 0.1uF.Calculate pulse width te , td and
10. Q2 Draw and explain MonostableMultivibrator
11. Q3 Difference between positive feedback and negative feedback,
12. Q4 Draw and explain Colpitts Oscillator
13. Q4 Answer any 2 from following. 10 marks
14. Q1 Draw and explain Pilot Carrier SSB system
15. Q2 Draw and explain Envelope Detector,
16. Q3 Explain concept of SSB with advantages and disadvantages, :
17. Q4 Draw and explain Balanced Modulator using FET
18. Q5 Answer any 2 from following. Draw & explain Frequency Modulation 10 marks
19. Q2 Write a short note on Phase modulation FDM with advantages and disadvantages, the concept of
20. Q6 Answer any 2 from following. Write a short note on Fiber optic cable, 10 marks
21. Q2 Write a short note on Ray model. A
22. Q3 Explain Multimode fibers Explain LED & LASER ).7 Answer any 3 from following. 5) Difference between BJT and FET Draw and explain BJT asa single stage amplifier, Draw and explain Colpitts Oscillator Explain Demodulation of AM. 3 the sampling process, : Explain Ray Model,

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