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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 12
36.
The noise figure is
3 dB
6 dB
6.6 dB
12 dB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
A Darlington pair is used for
low distortion
high frequency range
high power gain
high current gain
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
In a shunt-shunt negative feedback amplifier, as compared to the basic amplifier
both input and output impedances, decrease
input impedance decreases but output impedance increase
I/P impedance increases but O/P impedance decreases
both input and O/P impedance increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
In rectifiers the use of RC filters is recommended when
load current is high
load current is small
load current is neither high nor small
either (a) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The coupling capacitor mainly affects
bandwidth
lower cut-off frequency
higher cut-off frequency
both lower as well as higher cut-off frequency
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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