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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 12
11.
Which of the following circuits can operate class AB for audio power output?
Emitter follower
Push pull
Cascade
Darlington pair
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
In a P-N-P transistor, with normal bias
the collector junction has negligible resistance
only holes cross the collector junction
the collector-base junction is reverse biased and the emitter base junction is forward biased
only majority carriers cross the collector junction
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
If Rs is the sources resistance, the O/P resistance of an emitter follower using the simplified hybrid model would be
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
A D.C. amplifier amplify
D.C. only
A.C. only
both A.C. and D.C.
none of the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
In common base amplifier the current gain is less than one, but the voltage gain may be anywhere from
0.5 to 1
1 to 5
5 to 10
50 to 2000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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