EEM LAST YEAR PAPERS OF SEMESTER 1ST
ANALOG
As we all know in 2021 the syllabus of EEM was changed a little
bit. we have some old years paper by which you can make an idea about the
important exam questions. these old year papers are not available anywhere in
the market that's why I am posting EEM Last Year Papers.
To
download the file CLICK HERE
For
solved paper CLICK HERE
ELECTRONIC EQUIPMENT—II (Electronic Devices. Components &
Assemblies-I)
Time : Three Hours]
[Maximum Marks : 30
Note : Attempt give questions in all. Q. No. 1 is compulsory.
Attempt one question from each unit.
UNIT—I
(Compulsory Question)
1.(a) Why is negative feedback employed in High Gain Amplifiers?
(b) If a resistor is rated at 100 S2 and 5 W, what is the maximum
current it can carry?
(c) Can an intrinsic semiconductor be changed to extrinsic
semiconductor? If yes then how?
(d) What are the advantages of JFET over BJT? (1.5x4=6)
UNIT—II
2. (a) Explain turn ratio and voltage ratio transformers.
(2) (b) The current flowing through a p-n function is 5uA at room temperature, when large reverse
voltage is applied. Calculate the current when reverse voltage is 0.2 V ? Given
VT = 25 mV at room temperature. (4)
3 (a) Explain working principle of :
(i)
LED.
(ii)
(ii) Phototransistor. (3)
3 (b) What is the basic principle of a
transformer? Differentiate between Step-up and Step-down transformers. (3)
UNIT—III
4 )
In a full wave rectifier (centre tapped) load is 10 kohm and each diode
has a resistance of 400ohm . If peak input voltage to each diode is 200 V,
find :
(i)
Peak value of current
(ii)
(ii) D.C. and r.m.s. value
of current
(iii)
(iii) Ripple factor and rectifier efficiency. (6)
5. (a) Explain the filter action of a
capacitor and an inductor.
(3)
(b) Series-inductor filter cannot be
used with half-wave rectifier. Why? (3)
UNIT—IV
6(a) Draw the circuit diagram of
Class-A amplifier and explain it. (3)
(b) The overall gain of a multistage
amplifier is 150. When negative feedback is applied, the gain is reduced to 20.
Find the function of the output that is feed back to the input. (3)
7. (a) What is the effect of negative
feedback on Harmonic? Distortion and frequency response of an amplifier. (3)
(b) Discuss Class A. B. AB and Class C
amplifiers on the basis of biasing conditions with neat and clean diagrams. (3)
UNIT—V
8) Elaborate difference between JFET
and Depletion MOSFET. (3)
(b) What is the function of Aquadag
coating on the inside wall of the glass envelope of C.R.T.? (3)
9. (a) Sketch the structure of a
p-channel enhancement MOSFET and explain its working. What are the advantages
of a p-channel MOSFET?
(3)
(b) Explain the need of sawtooth voltage to
display waveform on CRO screen. (2)
(c) List the differences between an
analogue multimeter and a digital multimeter ?
( 1 )
This is the main paper of year 2019 and
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Also the full solved paper is available
to get solved paper CLICK HERE.
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