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GATE 2023 Subject Name Quiz 66

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Question 1

To make an amplifier behave as a good voltage controlled voltage source the type of feedback configuration used in

Question 2

The common collector amplifier (with out by pass capacitor) is an example of

Question 3

Consider an amplifier with a gain of 1000 has a gain change of 20% due to temperature variation. If the amplifier is connected as an amplifier in closed loop with β = 0.2, then the change in gain of the feedback amplifier is _______%.

Question 4

An op-amp is used in a feedback configuration having open loop forward gain value of 50 as shown. The feedback gain is β in the circuit, the feedback circuit is given below. For which of the combination of R1 and R2 respectively would the configuration work as an oscillator?

Question 5Multiple Correct Options

A series feedback amplifier using a transconductance amplifier operates with VS = 100 mV, Vf = 95 mV, and Io = 10 mA, respectively.

Then which of the following statement is/are correct?

Question 6

In the figure given below

In the figure shown below if the open loop gain of op-amp is 103 then the close loop gain of the amplifier is

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Nov 14ESE & GATE EE