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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 18
21.
The h parameter equivalent to ac resistance re is
hib
hfe
hob
hrb
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
In figure the diode is ideal (zero cut in voltage zero forward resistance). Then the current through diode is
0
4 A
1 A
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The theoretical maximum efficiency of a half wave diode rectifier is
40.6%
50%
81.2%
slightly less than 100%
Answer: Option
Explanation:
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24.
Which of the following statement is correct?
The input impedance of CE amplifier is usually around 10 Ω
The voltage gain of a transistor amplifier in CE mode is always less than unity
The output impedance of a transistor amplifier is independent of the transistor configuration
The voltage gain of a transistor amplifier is independent of the load resistance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
In a transistor push pull amplifier
there is no dc present in the output
there are no even harmonics in the output
both (a) and (b)
neither (a) nor (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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