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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 8
11.
In the circuit shown in the given figure, the current flowing through resistance of 100 Ω would be
8 mA
10 mA
20 mA
100 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
A sine wave is passed through an amplifier which severely limits it symmetrically. If then passes to a second amplifier which is narrow band and tuned to the frequency of the original sine wave. What will be the output wave from this second amplifier?
A square wave of the same frequency as that of the original sine wave
A square wave of double the frequency of that of original sine wave
A sine wave of constant amplitude at the frequency of the original sine wave
A sine wave of constant amplitude at double frequency of the original sine wave
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
In which configuration is ac collector voltage zero?
CE
CB
CC
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Which connection is rarely used?
CE
CB
CC
Both (a) and (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.

Assertion (A): The main use of positive feedback is in oscillator circuits.

Reason (R): In an oscillator the loop gain Aβ is kept slightly more than unity

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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