BASIC ELECTRONICS 2nd Semester Exam
Basic Electronics PSBTE Diploma Solved Paper May 2017 SECTION-A
Q1. Do as directed. 15×1=15
N-type semiconductors are formed by adding Pentavalent impurity to a pure Semiconductor.
In Intrinsic semiconductors number of electrons are Equal to number of Protons.
Conduction in P-type semiconductor is due to movement of Holes .
The value of knee voltage for silicon diode is 0.7 V
A Photodiode is optimized for its sensitivity to
Zener diode is made to operate in Zener Breakdown Region.
A transistor contains Two PN Junction .
The emitter of a transistor is Highly doped.
The value of collector current of a transistor is Always Less than to emitter Current.
In transistor, leakage current mainly depends on Temperature.
The ideal value of stability factor is 1 .
The gain stability of an amplifier circuit can be improved by using Negative Feedback .
For a transistor to work as an amplifier, its operating point should lie in Active Region.
FET is a Three terminal semiconductor.
MOSFET stands for Metal Oxide Filed Effect Transister .
Q2. Attempt any five questions. 5×6=30
How N-type semiconductor is formed?
What are intrinsic and extrinsic semiconductors?
Write a note on PN Junction ?
What is Zener diode? Draw its symbol and explain its Working ?
What is Transistor? Draw and explain PNP
Differentiate between FET and
What do you mean by thermal runaway?
Q3. Attempt any three questions. 3×10=30
What are needs of filter? Explain π (Pi) filter in detail.
Derive an expression for amplification factor (β) of common emitter configuration.
Explain the divider method of biasing for transistor (CE).
What is CMOS? Explain its advantages and application.
Explain the concept of bipolar transistor and draw symbol of NPN and PNP transistors.
BASIC ELectronics be may 2018 DIPLOMA PAPER SOLUTION
Section a FILL IN THE BLANKS be paper
Zener Breakdown Region
Metal Oxide Filed Effect Transister
Section B : BE PAPER MAY 2018 PAPER
What is Zener diode? Draw its symbol and characteristics
hybrid Parameter) of transistor
Temperature variations affect the operating point of a transistor
Phase reversal of output voltage with respect to input voltage in an Amplifier
BASIC ELECTRONICS DIPLOMA MAY 2018 PAPER
Section c solved bee paper
CE configuration of a Transistor Click Here