Electronics and Communication Engineering - Analog Electronics

26. 

In a resistance loaded amplifier, the gain decreases at high frequencies because

A. decreasing reactance of the stray CT
B. increasing reactance of the stray CT
C. increasing reactance of CT
D. decreasing reactance of CT

Answer: Option A

Explanation:

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27. 

A 1 ms pulse can be stretched to 1 sec pulse by using

A. an astable multivibrator
B. a monostable multivibrator
C. a bistable multivibrator
D. a Schmitt trigger circuit

Answer: Option B

Explanation:

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28. 

Most of the transistor data sheets specify the power rating for an ambient temperature of

A. 10°C
B. 25°C
C. 50°C
D. 75°C

Answer: Option B

Explanation:

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29. 

In figure vi is a sinusoidal wave. Which of the following best describes the output v0?

A.
B.
C.
D.

Answer: Option B

Explanation:

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30. 

The early effect in BJT is caused by

A. fast turn on
B. fast turn off
C. large collector base reverse bias
D. large emitter base forward bias

Answer: Option C

Explanation:

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