Exercise: Analog Electronics

Questions for: Analog Electronics

In figure it is desired that output wave is symmetrical. Then
A:
both diodes should be similar and |V1| = |V2|
B:
both diodes should be similar
C:
|V1| = |V2|
D:
either (a) or (b)
Answer: A
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Common base configuration is little used because
A:
it has low input impedance
B:
it has high input impedance
C:
it does not heat up
D:
it has very high gain
Answer: A
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Assertion (A): An ac amplifier uses coupling capacitors at input and output

Reason (R): The capacitive reactance varies inversely with frequency. It is infinite for dc

A:
Both A and R are correct and R is correct explanation for A
B:
Both A and R are correct but R is not correct explanation for A
C:
A is correct R is wrong
D:
A is wrong R is correct
Answer: A
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Which configuration has high input impedance and low output impedance?
A:
CB
B:
CE
C:
CC
D:
CB and CE
Answer: C
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Which circuit has its output signal from, the emitter?
A:
Common base
B:
Common emitter
C:
Emitter follower
D:
None of the above
Answer: C
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