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ESE-2018 Electrical Engineering Quiz 9
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Question 1
Pulses of definite width can be obtained from irregular shaped pulses:
Question 2
Which one of the following statements is correct? The rise time of an amplifier is
Question 3
An amplifier has an open loop gain of 1000 ± 10. Negative feedback is provide such that the gain variation remains within 0.1%. What is the amount of feedback βF?
Question 4
In the order to obtain repetitive pulses of unequal mark space one can use:
1) A voltage comparator fed with a triangular wave signal and dc voltage.
2) An astable multi-vibrator
3) A mono-stable multi-vibrator fed with a square wave input
1) A voltage comparator fed with a triangular wave signal and dc voltage.
2) An astable multi-vibrator
3) A mono-stable multi-vibrator fed with a square wave input
Question 5
fT is the frequency at which the short circuit.
Question 6
A negative-feedback closed-loop system is supplied to an input of V. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage?. Assume input voltage is 5 V.
Question 7
The circuit shown below is a
Question 8
The noise figure of a lossy network at room temperature equals the
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Feb 5ESE & GATE EE