Electronics and Communication Engineering
2023 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE ECE 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 46–48 of 65. Imported answers require review unless explicitly marked reviewed.
Question 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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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 47
Open questionECMCQ2 marksNeeds review
Consider a discrete-time period signal with period
. Let the discrete-time Fourier series (DTFS) representation be
, where
,
,
,
and
. The value of the sum
isYour 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 48
Open questionECMCQ2 marksNeeds review
Let an input
have discrete time Fourier transform
be passed through an LTI system. The frequency response of the LTI system is
. The output
of the system isYour answerChoose one option.
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