Electronics and Communication Engineering - Exam Questions Papers
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- Exam Questions Papers - Exam Paper 2
1.
The circuit given below is:


Answer: Option
Explanation:
The given circuit is Band pass filter
.
2.
Rank of the matrix:


Answer: Option
Explanation:
The given matrix is equivalent to
,
Thus rank is 1.
3.
His rather casual remarks on politics __________ his lack of seriousness about the subject.
Answer: Option
Explanation:
The key words in the statement are 'casual remarks' and 'lack of seriousness'.
The blank should be filled with a word meaning 'showed' or 'revealed'. Hence, 'betrayed' is the correct answer.
4.
The resolution of a 4 bit counting ADC is 0.5 volts. For an analog input of 6.6 volts, the digital output of the ADC will be
Answer: Option
Explanation:
Resolution =
⇒ = 0.5
2n = 14 = (1110)
n = 4 bits.
5.
For the power amplifier circuit shown below, the maximum power dissipated by both output transistor is


Answer: Option
Explanation:
The max. power dissipated by both output transistor is max. P2 = = 31.66 W.
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