Electronics and Communication Engineering
GATE ECE topic:circuit-analysis PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–20 of 50. Imported answers require independent review unless marked reviewed.
Question 31
Open questionECNAT1 markNeeds review
In the given circuit, the current
(in mA) is ______. 
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Open questionECNAT1 markNeeds review
In the circuit given below, the switch S was kept open for a sufficiently long time and is closed at time
. The time constant (in seconds) of the circuit for
is ______. 
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Open questionECNAT1 markNeeds review
As shown in the circuit given below, the initial voltage across the capacitor is 10 V, with the switch being open. The switch is then closed at
. The total energy dissipated in the ideal Zener diode (
V) after the switch is closed (in mJ, rounded off to three decimal places) is ________.
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Open questionECNAT2 marksNeeds review
In the network shown below, maximum power is to be transferred to the load
.
The value of
(in
) is ______.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 18
Open questionECMCQ1 markNeeds review
A series
circuit has a quality factor
of 1000 at a center frequency of
. The possible values of
,
and
areYour 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 32
Open questionECNAT1 markNeeds review
In the circuit shown below, the current
flowing through 200
resistor is ______ mA (rounded off to two decimal places). 
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Open questionECNAT1 markNeeds review
For the two port network shown below, the [Y]-parameters is given as
The value of load impedance
, in
, for maximum power transfer will be ______ (rounded off to the nearest integer). 
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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 35
Open questionECNAT1 markNeeds review
In the circuit shown below, switch S was closed for a long time. If the switch is opened at
, the maximum magnitude of the voltage
, in volts, is ______ (rounded off to the nearest integer). 
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Open questionECMCQ2 marksNeeds review
The switch
was closed and
was open for a long time. At
, switch
is opened and
is closed, simultaneously. The value of
, in amperes, 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 46
Open questionECMCQ2 marksNeeds review
The
-parameters of a two port network are shown below. The condition for the maximum small signal voltage gain
is 
Your answerChoose one option.
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