BASIC ELECTRONICS
2nd Exam/ECE/CSE/IT/MECHATRONIC/0190/May’19
(FOR 2018 BATCH)
SECTION-A
Q1. Fill in the Blanks 15×1=15
- Under normal operating voltages the reverse current in a silicon junction diode is in 1μA .
- Ripple factor in full wave rectifier is 0.48
- CMOS means Complementary Metal Oxide Semiconductor.
- Write the relation between α and β. solution β.=α /1-α
- Biasing in transistor is done to stabilize the Operating Point (Q -Point).
- At absolute zero temperature an intrinsic semiconductor behaves like Insulator.
- In saturation region both junctions of transistors are Forward Biased.
- When a P-N junction is heavily doped its breakdown voltage will Decrease.
- Operation of JFET involves Majority Carrier.
- Boron has Four valence .
- An ideal diode has Zero forward Resistance.
- The ideal value of stability factor is one.
- The communication path in an FET through which the carriers flow between drain and source is called Channel.
- A capacitor circuit does not allow passing dc Components.
- The material used for the construction of LED is band GaAsP.
SECTION-B
Q2. Attempt any five questions. 5×6=30
- Compare the MOSFET and BJT ?
- Explain the behavior of P-N junction under different bias Conditions ?
- Draw h- model of CE Amplifier.
- Describe the importance of load line with suitable Diagram ?
- Explain the terms avalanche and Zener Breakdown ?
- Give advantages and applications of CMOS.
- Derive the relation Ic = αIE + ICBO and explain different terms used in them.
- Write a note on drift and diffusion.
- What is a filter circuit? Explain the working of LC filter
SECTION-C
Q3. Attempt any three questions. 3×10=30
- Compare CB, CE and CC Configurations with at least five
- With the help of diagram and waveforms, Explain working of Center tap full wave
- Explain the divider method of biasing for transistor (CE).
- Write a short note on any two of the following:
- Thermal Runaway
- Varactor diode (Symbol, operation, application.
- BJT as an a Amplifier.
- Explain Construction, operation and characteristics of a MOSFET in depletion and enhancement modes.
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BASIC Electronics may 2019 batch 2018 subject code 0190 DIPLOMA PAPER SOLUTION
Section b solved be paper new batch 2018 may 2019
advantages and applications of CMOS.
Derive the relation Ic = αIE + ICBO and explain different terms used in them.
- Write a note on drift and diffusion.
- What is a filter circuit? Explain the working of LC filter Solution Click Here
Section c :-BASIC Electronics may 2019 batch 2018 subject code 0190 DIPLOMA PAPER SOLUTION
Section c solved bee paper
Kirchhoff s Law
Chassis and ground