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Download PTU B-Tech ECE 2020 Dec 3rd Sem 57583 Analog Devices And Circuits Question Paper

Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) (ECE)-Electronics And Communications Engineering 2020 December 3rd Sem 57583 Analog Devices And Circuits Previous Question Paper

This post was last modified on 13 February 2021

Tags:PTUB.TechECE2020December3rd SemesterAnalog Devices and CircuitsQuestion Paper57583PDFDownload
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PTU B.Tech Question Papers 2020 December (All Branches)


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Roll No. | [ [ [] | [ 1] Total No. of Pages : 02

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Total No. of Questions : 18
B.Tech.(ECE/Electronics Engg)/
(Electronics & Computer Engg) (2012 to 2017) (Sem.-3)
ANALOG DEVICES & CIRCUITS
Subject Code : BTEC-301

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M.Code : 57583
Time : 3 Hrs. Max. Marks : 60

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.

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  3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
  4. Any missing data can be assumed appropriately.

SECTION-A

Write briefly :

  1. State the Barkhausen criteria for oscillator.

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  2. Why negative feedback employed in high gain amplifiers?
  3. Draw the hybrid model of CE, CB and CC BJT’s.
  4. What is thermal run-away?
  5. Compare Zener breakdown and Avalanche break down.
  6. Define Reverse Leakage Current of Diode.

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  7. Calculate Ic and IE for a transistor that has 4= 0.99 and Ig = 150pA. Determine the value of B for the transistor.
  8. Why it is required to have a stable Q-point of an amplifier?
  9. What is the value of Ripple factor for half wave and full wave rectifier?
  10. What is the Miller Effect?

SECTION-B

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  1. Explain briefly the working of Hartley oscillator.
  2. In a Class C amplifier with 1MHz signal frequency, determine the suitable tank circuit component values. Calculate the max AC power delivered to the load if Vcgmax = 0.5V, Ve =30V, RL =1.2kO.
  3. Derive an expression for the overall gain of voltage series feedback amplifier.
  4. Explain construction, operation and characteristics of JFETs.
  5. Draw and explain the complementary symmetry amplifier and discuss its advantages.

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SECTION-C

  1. Define H-Parameters. Derive expression for following of CE amplifiers using h-parameters
    1. Voltage gain
    2. Current Gain
    3. Input Resistance
    4. Output Resistance

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  2. Draw and explain the working of R-C-phase shift oscillator and also derive an expression for its frequency of oscillations.
  3. Explain working of push pull amplifier.

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 Question Papers 2020 December (All Branches)

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This post was last modified on 13 February 2021