GATE IN Analog Electronics PYQs & Answers

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–10 of 65. Imported answers require independent review unless marked reviewed.

Topic practice 65 questionsPage 1 of 7

A common gate amplifier represents a ______________.

Your answerChoose one option.

voltage controlled voltage source

current controlled current source

voltage controlled current source

current controlled voltage source

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In the circuit shown, the BJT has a

of 100. The base-emitter junction voltage is 0.65 V. The quiescent collector current,

is ______ mA.

Diagram for Instrumentation Engineering question 22

Your answerChoose one option.

0.365

0.435

0.625

0.862

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In the circuit below the maximum value of

is _______ V. (rounded off to the nearest integer)

Diagram for Instrumentation Engineering question 34

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In the circuit shown below, R is 1 kΩ and R_f is 10 kΩ. If V_in is 100 mV and the op-amps have supply voltages of ±15 V, then V_out is ______ V.

Diagram for Instrumentation Engineering question 45

Your answerChoose one option.

−15

2.1

1.1

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In the following active filter circuit with ideal op-amps, R is 1 kΩ, C is 1 μF, and V_in has an amplitude of 1 V at 1000 rad/s.

The amplitude of V_out is _________ V.

Diagram for Instrumentation Engineering question 46

Your answerChoose one option.

0.5

0.707

1.0

1.414

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

For the ideal opamp based circuit shown in the figure, the ratio

Diagram for Instrumentation Engineering question 20

Your answerChoose one option.

$\left(\frac\right)R_1

$\left(\frac\right)R_3

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The circuits mentioned in the following options are realized using ideal opamp. Among these, the circuit(s) performing non-linear operation on the input signal is/are

Your answerSelect all correct options. You can choose more than one.

Instrumentation amplifier

Schmitt trigger

Logarithmic amplifier

Precision rectifier

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In the circuit shown, assume that the BJT in the circuit has very high

and

V, and the Zener diode has

V. The current

through the LED is __________ mA (rounded off to two decimal places).

Diagram for Instrumentation Engineering question 35

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A chopper amplifier shown in the figure is designed to process a biomedical signal

to generate conditioned output

. The signals

and

are band limited to 50 Hz and 10 Hz, respectively. For the system to operate as a linear amplifier, choose the correct statement from the following options.

Diagram for Instrumentation Engineering question 41

Your answerChoose one option.

The minimum frequency of

required is 100 Hz and

gets attenuated by the system

The minimum frequency of

required is 100 Hz and

also gets amplified by the system by a factor

The minimum frequency of

required is 80 Hz and

gets attenuated by the system

The minimum frequency of

required is 80 Hz and

also gets amplified by the system by a factor

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Consider the circuit shown in the figure.

Diagram for Instrumentation Engineering question 23

The CMOS digital logic circuit has infinite input impedance. Assume the opamp is ideal. A 1.8 V Zener diode with a minimum Zener current of 2 mA is used. The corresponding maximum value of resistance

is ______ kΩ (rounded off to one decimal place).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE IN Analog Electronics PYQs

How to practice Analog Electronics

Question 21

Question 22

Question 34

Question 45

Question 46

Question 20

Question 31

Question 35

Question 41

Question 23