Karnataka State Open University (KSOU) 2011-3rd Sem B.Tech Electronics and Tele-Communication Engineering Electronics and Communication Electronic Circuits - Question Paper
III Semester B.Tech. in Electronics & Tele Communication Engg. Examination, August 2011 ELECTRONIC CIRCUITS- I
TLme : 3 Hours Max. Marks: 75
Instrwiction : Answer any Jive questions from Part - A, and Part - B.
PART - A
Answer any five questions : (5x5=25)
1. Describe about electrostatic pump.
2. Write the formulas of the pressure and force at the open edges of the different types of capacitor.
3. What is Ionization ? How can you estimate the ionization energy ?
4. Explain tlie role of ceramics in semiconductor processing.
5. Explain the SIC diodes.
6. Write the optical and electrical properties of LEDs.
7. Explain the types of transistor. '
8. Write the advantages and disadvantages of relays.
PART-B
Answer any five questions : (5x10=50)
9. Explain the energy band structure with neat sketches.
10. Give an account on semiconductors.
11. Discuss about P-N junction.
12. Write a short note on i) Density of states ii) Density of electrons.
13. Give an account on LED.
14. Explain the structure and characteristics of JFET.
15. Discuss briefly about MOSFET technology.
16. Explain the construction, operation and characteristics of UJT with neat sketch.
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| Earning: Approval pending. |
