Previous Year Very Short Questions of EDC (DIPLOMA electronics and communication engineering 3rd)

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Electronics devices and circuits

Previous year question paper with solutions for Electronics devices and circuits

Our website provides solved previous year question paper for Electronics devices and circuits . Doing preparation from the previous year question paper helps you to get good marks in exams. From our EDC question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.

These Questions are downloaded from www.brpaper.com You can also download previous years question papers of 10th and 12th (PSEB & CBSE), B-Tech, Diploma, BBA, BCA, MBA, MCA, M-Tech, PGDCA, B-Com, BSc-IT, MSC-IT.

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  1. Feedback in Schmitt trigger is a _______ series.
  2. The frequency of oscillations of Hartley oscillator is f= _______.
  3. In LED, light is emitted because recombinations of ______ take place.
  4. Distortion in amplifier decreases with ______.
  5. In a series RC circuit, impedance is equal to _______.
  6. The size of power transistor is _____ than other transistors.
  7. ______ type of coupling is used for impedance matching.
  8. For digital memory _______multivibrator circuit is used.
  9. Barkhausen criterion for producing oscillations is ______.
  10. SMPS stands for ________.
  11. A Photo diode is essentially a ______ biased PN Junction, which is illuminated with radiation.
  12. For Hartley Oscillator, frequency is given by _______.
  13. In LED, light is emitted because recombination's of ______ take place.
  14. Negative feedback is called ______ because it reduces amplifier gain.
  15. Clipping circuit is used to _______ the waveform.
  16. _____ harmonics are cancelled in push pull amplifier.
  17. CMRR stands for ________.
  18. At cut off frequency gains drops to ________ of the maximum gain.
  19. Barkhausen criterion for producing oscillations is ________.
  20. VCO stands for ___________.
  21. SMPS stands for_______.
  22. LED stands for_______.
  23. Unit of gain is______.
  24. IC 7825 is a ______voltage regulator.
  25. CMRR stand for_______.
  26. Photo diode operates under _______biased conditions.
  27. The input impedance of an op-amp is very _______.
  28. RC coupling is used for ________ amplification.
  29. Oscillators use positive feedback. (True/False)
  30. VCO stands for_________.