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1 E1 - Question Bank

The document outlines the examination paper for the First Year Bachelor of Computer Science at Pratibha College, covering the subject of Semiconductor Devices and Basic Electronic Systems. It includes a variety of questions, both small and large answer types, addressing topics such as transistor configurations, DAC definitions, and circuit diagrams. The questions assess knowledge on components like MOSFETs, diodes, and oscillators, as well as their applications and characteristics.

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9 views2 pages

1 E1 - Question Bank

The document outlines the examination paper for the First Year Bachelor of Computer Science at Pratibha College, covering the subject of Semiconductor Devices and Basic Electronic Systems. It includes a variety of questions, both small and large answer types, addressing topics such as transistor configurations, DAC definitions, and circuit diagrams. The questions assess knowledge on components like MOSFETs, diodes, and oscillators, as well as their applications and characteristics.

Uploaded by

tejsutar8
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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PRATIBHA COLLEGE OF COMMERCE & COMPUTER STUDIES

SAVITRIBAI PHULE PUNE UNIVERSITY


(Formerly University of Pune)
First Year Bachelor Of Computer Science (PAT.2019)
Examination of Nov/Dec 2023
Subject Name: Semiconductor Devices and Basic Electronic Systems.
________________________________________________________________
Q1) Small Answer question.
1. Draw the symbol of i)LED ii) Zener diode.
2. States types of MOSFET.
3. What is the output voltage of IC 7805?
4. Define Accuracy with reference to DAC.
5. For transistor α=0.98, find the value of β.
6. State two conditions of Barkhausen criteria.
7. List any two applications of solar cell.
8. Define knee voltage.
9. What is ripple?
10. Define the term PIV for a diode.
11. Draw the symbol of i) n-p-n transistor ii) p-n-p transistor.
12. States 2 types of diodes.
13. What is the output voltage of IC 7905?
14. Define Resolution with reference to DAC.
15. What is the full form of MOSFET.
16. Define Load regulation.
17. What is ripple factor?
18. What is piezoelectric effect.
19.Draw diagram of 4 bit R-2R ladder network DAC.
20. Explain how MOSFET works as a switch.
21.If R1=1KΩ, C= 0.22 μf, Calculate the frequency of Wein bridge oscillator.
22. Define i) Resolution ii) Linarity of DAC.
23. Draw I-V characteristics of PN junction diode.
24. Draw neat diagram n-channel D-MOSFET.
25. State the applications of ADC.
26. Write short note on potential divider bias of transistor.
27. Define i) Linarity ii) Accuracy of DAC.
28. Draw block diagram of off line UPS.

1
Q2) Large Answer question.
1) Distinguish between CC, CB and CE configuration of transistor .
2) For 4 bit R-2R ladder find the following.
1) Full scale output voltage
2) Analog output voltage for digital input i) 1010 ii)1101.
3) Distinguish between Half wave rectifier and Full wave rectifier.
4) Derive relationship between α and β .
5) Draw the block of Regulated power supply and explain each block.
6) Explain the working of N-P-N transistor.
7)Write short note on Opto coupler.
8) An Astable 555 timer has RA=8 KΩ, RB=4KΩ and C=0.1μf, what is the
output frequency.
9) Draw diagram of 2 bit flash ADC and explain its working.
10) Define term α ,β and Ƴ with reference to transistor. State relationship
betwwen α and β.
11) Draw the circuit diagram and explain the working of Half wave rectifier.
12) Draw the circuit diagram and explain the working of Half wave rectifier
13) what is difference between unregulated power supply and regulated power
suppy.
14) which component are used to regulated power supply.
15) draw the symbol and working principle diagram of N-P-N transistor.
16) which components are use in optocoupler, expalin basic principle of this
compnents.
17) draw the diagram of astable IC 555 and write down formula of finding the
frequency.

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