Karnataka II PUC Electronics Model Question Paper 2021-22
Name of the Organisation : Department of Post University Education, Karnataka
Exam : II PUC Electronics Exam
Subject : Electronics
Document Type : Model Question Paper
Website : https://pue.karnataka.gov.in
Karnataka II PUC Electronics Model Question Paper
Department of Post University Education, Karnataka Electronics Model Question Paper II PUC for the year 2021-22.
Related / Similar Question Paper : Karnataka II PUC Computer Science Model Question Paper 2021-22
Karnataka II PUC Electronics Questions
PART A
Answer any TEN questions:
1. Is JFET unipolar or bipolar device?
2. What is heat sink?
3. What is an amplifier?
4. What happens to the input impedance of an amplifier when voltage series negative feedback is applied?
5. Mention the unit of slew-rate.
6. What are damped oscillations?
7. Which layer of the ionosphere disappears during night?
8. Define frequency modulation..
9. Sketch the AM wave for when modulation index ??? = 1.
10. Expand SCR.
11. Write the output Boolean expression for the two input XNOR gate.
12. Convert the decimal number 29 to BCD.
13. How many interrupt sources are there in 8051 microcontroller?
14. How many keywords are there in C-language?
15. What is meant by cell related to mobile communication system?
PART B
Answer any FIVE questions:
16. Define amplification factor in JFET and write its relation with ??? ?????? ??? .
17. Mention any two advantages of voltage divider biasing.
18. Classify the amplifiers based on coupling scheme.
19. Mention the advantages of negative feedback.
20. List any four characteristics of an ideal op-amp.
21. Explain piezoelectric effect.
22. Draw the block diagram of satellite transponder.
23. What is over modulation and why is it not preferred in AM?
24. Write any two application of power electronics?
25. Distinguish between uplink and downlink signals.
PART C
Answer any FIVE questions:
26. Give any three comparisons between BJT and FET.
27. What is thermal runaway? Name any two leakage current in a transistor.
28. Define (i) Skip distance (iii) Skip zone and (iii) fading
29. What is half-adder? Draw the logic diagram of half adder using only NAND gates.
30. Draw the structure of a typical pn junction power diode and explain its constructional details in brief indicating typical dimensions and doping levels.
31. Determine anode current ??? of SCR when ??? = 0. Given (??? + ???)=0.98 and I(???) + I(???) =1mA.
32. What is meant by Addressing mode in 8051? Name any two addressing modes.
33. Write the format of simple C program.
34. Discuss in detail the syntax errors, logical errors and run time errors.
35. What is Internet? Mention the important techniques used for Bluetooth operation.
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