Exercise: Analog Electronics

Questions for: Analog Electronics

In a BJT amplifier circuit the size of coupling capacitor depends on
A:
lowest frequency
B:
highest frequency
C:
average of lowest and highest frequencies
D:
none of the above
Answer: A
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In switching devices, gold doping is used to
A:
improve bonding
B:
reduce storage time
C:
increase the mobility of the carrier
D:
protect the terminals against cooperation
Answer: B
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In an op-amp differentiator
A:
the amplitude of output is proportional to rate of change of input
B:
the amplitude of output is proportional to input
C:
output occurs when input is finite and constant
D:
polarity of input and output is the same
Answer: A
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Which of the following amplifier circuit using junction transistor has the best gain?
A:
Common base
B:
Common emitter
C:
Common collector
D:
All have the same gain
Answer: B
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In deriving ac equivalent circuit for an amplifier circuit we short circuit
A:
all resistors
B:
all transistors
C:
all inductors
D:
all capacitors
Answer: D
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