Be Impq

The document contains questions about basic electronics topics across 5 units: [1] Diodes and rectifiers, including operation of PN diodes and characteristics, full wave rectifiers, and Zener diodes. Filters and CRTs are also discussed. [2] BJT and JFET configurations and characteristics. Small signal models and amplifier analysis. [3] Feedback types and concepts. RC and LC oscillators such as Wein bridge and Colpitts oscillators. [4] Operational amplifiers including ideal characteristics, inverting/non-inverting amplifiers, and use as integrators and differentiators. Digital logic gates and half/full adders.

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Be Impq

Uploaded by

MOHAMMED FAIZAN BTECH-CSE

Available Formats

Download as PDF, TXT or read online on Scribd

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BASIC ELECTRONICS IMPORTANT QUESTIONS

Unit-I

1. Explain the operation of diode under forward and reverse bias and draw V-I
characteristics of a P-N Diode (Si, Ge) and write diode current equation. Describe each
variable. Also mention the applications of Diodes? How diode current varies with
temperature?
2. Draw a neat circuit diagram and explain the operation of Full Wave Rectifier using two
diodes and sketch the wave forms. Derive the Ripple factor, Efficiency, TUF. What is the
significance of Transformer Utilization Factor?
3. Explain Zener diode under forward and reverse bias and draw V-I characteristics
And Avalanche breakdown & zener breakdown, Why Zener diode acts as voltage
regulator?
4. Explain CRT block diagram and explain each blocks of CRT, Applications of CRO
5. Explain in details of Filters i.e types of filters( Inductor filter, capacitor filter, LC filter
and filter).

Unit-II

6. Explain as follows
a) configurations of BJT CB. b) configurations of BJT CE. C) configurations of BJT CC.

7. Explain Construction and working of JFET with V-I characteristics of JFET

8. Explain small signal h parameter model of CE, and CE amplifier analysis.

Unit-III

9. What are types of feedback Concept and Explain negative feedback types as follows
a) Voltage –shunt b) Voltage –Series c) Current-shunt d) Current- Series

10. Explain as follows a) Gain b) Bandwidth c) Input and output Impedances

11. What are types of RC oscillators? Explain any two (RC Phase shift, Wein bridge
oscillators)
12. Explain LC oscillators (Hartley Oscillator & Colpitts Oscillator)
Unit-IV

13. Explain OP- AMP Block diagram, Ideal Characteristics of OP-AMP

14. Explain DC and AC Characteristics
15. Explain Inverting and Non-Inverting Amplifiers, Adder/ Subtractor
16. (a)Explain Op-Amp as integrator
(b) Explain Op-Amp as Differentiator
17. Explain as following with truth tables and Boolean expression
a) AND GATE b) OR GATE c) NAND GATE d) NOR GATE e) XOR AND XNOR
GATES
18. Explain the Half Adder and Full adder

Unit-V

19. Explain Construction and working of Transducer

20. Explain Strain Gauge and Calculate Gauge Factor.
21. Explain LVDT (Linear Variable Differential Transducer)
22. Explain Thermocouple and Instrumentation systems
23. What are types Analog to Digital converter(ADC) and Digital to Analog Converter(DAC)
24 . Explain R-2R Ladder DAC, Successive approximation ADC and Flash ADC.