Electrical Engineering
GATE EE Analog and Digital Electronics PYQs
Build your understanding with focused practice from past exam papers.
How to practice Analog and Digital Electronics
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 57. Imported answers require independent review unless marked reviewed.
Question 33
Open questionEENAT1 markNeeds review
In the linear regulator circuit shown, the base to emitter voltage
of the BJT is 0.6 V. The Zener diode clamps the base voltage to 5.4 V. Ignore the biasing current of the Zener diode and BJT.The maximum possible efficiency of the regulator circuit is __________ %
(Round off to one decimal place)
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Open questionEEMCQ2 marksNeeds review
In the circuit shown, the open loop gain of the operational amplifier is
.What is the voltage gain of the circuit?
(Round off to two decimal places)
Your answerChoose one option.
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Open questionEEMCQ2 marksNeeds review
The digital circuit shown has 3 inputs (x, y, and z).
The simplified logical expression for the output (OUT) is:
Your answerChoose one option.
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Open questionEEMCQ2 marksNeeds review
The MOSFET switches shown in the circuit are ideal.
Which of the following is the correct option for Boolean logic expression of the output (OUT), and the maximum possible power (P) consumed by the circuit?
Your answerChoose one option.
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Open questionEEMCQ1 markNeeds review
Which one of the following statements is true about the small signal voltage gain of a MOSFET based single stage amplifier?
Your answerChoose one option.
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Assuming ideal op-amps, the circuit represents a
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Open questionEEMCQ2 marksNeeds review
A Boolean function is given as
The simplified form of this function is represented by
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 38
Open questionEEMCQ2 marksNeeds review
In the circuit,
is an ideal current source. The transistors
and
are assumed to be biased in saturation, wherein
is the input signal and
is fixed DC voltage. Both transistors have a small signal resistance of
and trans-conductance of
. The small signal output impedance of this circuit is
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 56
Open questionEENAT2 marksNeeds review
The op-amps in the following circuit are ideal. The voltage gain of the circuit is _____ (round off to the nearest integer).
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Open questionEEMCQ1 markNeeds review
Simplified form of the Boolean function
isYour answerChoose one option.
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