Exercise: Analog Electronics

Questions for: Analog Electronics

In a CE amplifier the output coupling capacitor is short circuited. The dc collector voltage
A:
will increase
B:
may increase or decrease
C:
will remain the same
D:
will decrease
Answer: D
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Pick the odd-one out
A:
Hartley Oscillator
B:
Colpitt oscillator
C:
Clapp oscillator
D:
Weinbridge oscillator
Answer: D
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If ac resistance of diode is re, then In CE, BJT amplifier the input impedance is
A:
re
B:
β re
C:
D:
(βre)2
Answer: B
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In a differential amplifier, CMRR can be improved by using an increased
A:
emitter resistance
B:
collector resistance
C:
power supply voltages
D:
source resistance
Answer: A
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In a CE amplifier circuit the emitter by pass capacitor is remove. The ac output voltage
A:
increases
B:
remains the same
C:
increases or decreases
D:
decreases
Answer: D
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