Download eca assignment two marks questions

ECA ASSIGNMENT
TWO MARKS QUESTIONS:
Q.1
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
Q.2
a.
b.
c.
d.
e.
f.
g.
Q.3
a.
b.
c.
d.
e.
f.
g.
h.
Q.4
Q.5
a.
b.
Q.6
a.
b.
Define the following:
Thermal runaway,
Thermal resistance,
Voltage gain(Av),
Current gain(Ap),
Stability factor (S)
Input resistance(Ri) ,
Output resistance(Ro),
Power gain(Ap),
Gain-bandwidth product,
Frequency response
Draw symbol of:
Varactor diode
Zener diode
Crystal diode
LDR
Schottky diode
P-n-p transistor
N-p-n transistor
Draw circuit of
Half-wave rectifier
Positive clipper
Negative clipper
Positive clamper
Negative clamper
Darlington amplifier
Two stage transformer coupled amplifier
Two stage direct couple amplifier
Write transistor biasing methods.
Difference between
P-n junction diode and zener diode.
LED and photo diode
Draw characteristics of
zener diode
p-n junction diode
THREE MARKS QUESTIONS
Q.1
Q.2
Q.3
Q.4
Q.5
Q.6
Explain need of heat sink.
Explain positive clippers and negative clippers.
Explain transistor configurations.
Explain positive and negative clampers.
Write all performance parameters of CE and CB amplifier.
Explain load line of CE and CB amplifiers.
FOUR MARKS QUESTIONS
Q.1
What is stabilization? Explain the factors affecting stabilization
Q.2
Define biasing. State Fix biasing method of transistor biasing.
Q.3
State Emitter bias with resistor biasing method of transistor biasing.
Q.4
State voltage divider biasing method of transistor biasing
Q.5
Define: Gain, Resonant Frequency, Bandwidth and Gain Bandwidth
Product.
Q.6
Explain working of CB amplifier and draw its characteristic waveforms.
FIVE MARKS QUESTIONS
Q.1
Explain seven segment displays in detail.
Q.2
With the help of diagram explain input and output characteristics of CE
amplifier.
Q.3
With the help of diagram explain input and output characteristics of CC
amplifier.
Q.4
Write short note on :
a. RC coupled amplifier
b. Zener diode
c. Clippers
d. Thermal Instability
Q.5
Explain circuit of directly coupled two stage amplifier with its diagram &
state its advantage &disadvantage.