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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 19
21.
An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. Which of the following will increases from this type of operation?
Stability
Bandwidth
Distortion
Input resistance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
For a transistor if adc = 0.98 and emitter current IE is 2 mA, then base current will be
10 μA
40 μA
80 μA
200 μA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.

Assertion (A): Linear ICs include audio amplifier, wideband amplifier, RF amplifier and IF amplifier

Reason (R): The error voltage in a feedback circuit is very small

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.
24.
The given circuit has a feedback factor of
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.

Assertion (A): The horizontal intercept of dc load line is the same as ideal cut off point

Reason (R): When a transistor is in cut off region, collector current is zero

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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