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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 12
31.
Transformer coupling in transistor amplifier circuits provides high efficiency, because
d.c. resistance is low
collector voltage is stepped up
flux linkages are incomplete
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Two identical FETs each having parameters gm and rd are connected is parallel. The composite FET has parameters
0.5 gm and 2 rd
0.5 gm and 0.5 rd
2 gm and 2 rd
2 gm and 0.5 rd
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
If f is more than funity the gain of op-amp becomes less than 1.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
For an amplifier the input output signals are shown in figure. The class of amplifier is
A
AB
B
C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
In a N-P-N transistor the function of the emitter is
to emit or inject holes into the collector
to emit or inject electrons into the collector
to emit or inject electrons into the base
to emit or inject holes into the base
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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