PTU B.Tech 1st Semester Last 10 Years 2009-2019 Previous Question Papers|| Punjab Technical University
| Roll No. | Total No. of Pages : 02 |
| Total No. of Questions : 09 |
B.Tech.(EE) PT (Sem.-2)
ELECTRONICS DEVICES AND CIRCUITS
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Subject Code : BTEE-304
M.Code: 71537
Time: 3 Hrs.
Max. Marks : 60
INSTRUCTION TO CANDIDATES :
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- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION - B & C have FOUR questions each.
- Attempt any FIVE questions from SECTION B & C carrying EIGHT marks each.
- Select atleast TWO questions from SECTION - B & C.
SECTION-A
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Answer briefly :
- What is the clipper circuit?
- What is the use of load line?
- Draw the VI characteristics of the JFET.
- Draw the circuit diagram of class B amplifier.
- Calculate closed loop gain of an inverting mode OPAMP.
- List ideal and practical characteristics of OPAMP.
- Draw the circuit diagram of Wein bridge oscillator.
- What do you understand by negative resistance in oscillators?
- Distinguish the transistor series and shunt regulators.
- What is the benefit of using voltage regulator circuit?
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SECTION-B
- Determine the minimum value of current gain ß required to put the transistor in saturation when Vin = +5V. Assume, VBE(Sat) = 0.8 V, VCE(Sat) = 0.12 V.
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