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GATE EE 2018 Exam: Analog Circuits Quiz 4
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Question 1
A negative feedback of β = 2.5 × 10-3 is applied to an amplifier of open-loop gain 1000. What is the change in overall gain of the feedback amplifier, if the gain of the internal amplifier is reduced by 20%?
Question 2
Out of the following, which power amplifier has maximum efficiency?
Question 3
For a common-source amplifier with source degeneration, considering which of the following is true, where is the current without source degeneration, is the current with source degeneration, is the source degeneration resistance?
Question 4
An op-amp, having a slew rate of 62.8 V/μ sec, is connected in a voltage follower configuration. If the maximum amplitude of the input sinusoid is 10V, then the minimum frequency at which the slew rate limited distortion would set in at the output is
Question 5
The typical frequency response of a two-stage direct coupled voltage amplifier isas shown in
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Feb 7ESE & GATE EE