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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 7
21.
For the amplifier in figure, β = 800. The mid-band voltage gain V0/Vi is
0
< 1
≈ 1
800
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
In the circuit of figure, v0 =
3 v1 + 4 v2
-3 v1 - 4 v2
4 v1 + 3 v2
-4 v1 - 3 v2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Class C amplifier is suitable for
a narrow frequency band
a wide frequency band
audio frequencies
either (b) or (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
In a N-P-N transistor, when emitter junction is forward biased and collector junction is reverse biased the transistor will operate in
active region
saturation region
cut-off region
inverted region
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
A Wien bridge is suitable for
audio frequencies only
radio frequencies only
both audio and radio frequencies
very low frequencies only
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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