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Download PTU B.Tech 2021 Jan Automation-And-Robotics 5th Sem 78215 Electronics Devices And Circuits Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January Automation-And-Robotics 5th Sem 78215 Electronics Devices And Circuits Previous Question Paper

This post was last modified on 26 June 2021

This download link is referred from the post: PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University


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Roll No.                                                                                                                                                 Total No. of Pages : 02

Total No. of Questions : 18

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B.Tech. (Automation & Robotics) (Sem.-5)

ELECTRONICS DEVICES AND CIRCUITS

Subject Code : BTAR-501-18

M.Code : 78215

Time : 3 Hrs.                                                                                                                                                 Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

  1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
  2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
  3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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Write briefly :

  1. Define current gain, f3, in CE configuration.
  2. What is meant by Gate — Source threshold voltage of an FET?
  3. What are the applications of switching regulators?
  4. Write a short note on voltage follower!
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  6. Define slew rate.
  7. Draw pin diagram of IC 555 timer.
  8. List any three advantages of A to D converter.
  9. What is the importance of sample and hold circuits.
  10. Discuss the need of multiplexer.
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  12. Write a short note on VCO

SECTION-B

  1. Describe the operation of common drain FET amplifier and derive the equation for voltage gain.
  2. Write a brief note on binary ripple counters.
  3. Draw circuit diagram of 555 timer for astable multivibrator. Explain its working.
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  5. Explain the difference between the gated SR latch and gated D latch.
  6. Draw circuit diagram of Schmitt trigger circuit and explain operation with input and output waveform.

SECTION-C

  1. Explain and draw the structure of enhancement type MOSFET.
  2. Explain precision half wave and full wave rectifiers in detail.
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  4. Explain the working of mono stable multivibrator with its circuit diagram and output waveform.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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This download link is referred from the post: PTU B.Tech 5th Semester Last 10 Years 2011-2021 Previous Question Papers|| Punjab Technical University