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Quiz 5
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Q.1
A buffer amplifier should have
low input impedance and high output impedance
high input impedance and high output impedance
high input impedance and low output impedance
low input impedance and low output impedance
Q.2
The units of transistor h parameters hand hare
Same
Different
Q.3
Whenever load is coupled class A amplifier through transformer efficiency
Increases
Decreases
Nothing happen
Q.4
In a CE amplifier drives a low load resistance directly the result will be
overloading of amplifier
underloading of amplifier
overloading or underloading of amplifier depending on circuit
none of the above
Q.5
The ideal characteristics of a stabilizer is
constant output voltage with low internal resistance
constant output current with low internal resistance
constant output voltage with high internal resistance
constant internal resistance and constant output current
Q.6
The dissipation at the collector is in the quiescent state and increases with excitation in the case of a
class A series fed Amplifier
class A transistor coupled Amplifier
class AB amplifier
class B amplifier
Q.7
In an amplifier the voltage gain is the ratio of
output voltage and emitter resistance
output voltage and input current
output voltage and input voltage
none of the above
Q.8
The value of parameter re used in re transistor model
increases with increase in temperature
decreases with increase in temperature
is not affected by increase in temperature
either (b) or (c)
0 h : 0 m : 1 s
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