Electronics and Communication Engineering
2021 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE ECE 2021 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 22–24 of 65. Imported answers require review unless explicitly marked reviewed.
Question 12
Open questionECMCQ1 markNeeds review
Addressing of a
memory is realized using a single decoder. The minimum number of AND gates required for the decoder isYour answerChoose one option.
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Open questionECMCQ1 markNeeds review
The block diagram of a feedback control system is shown in the figure. The transfer function
of the system is 
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Open questionECMCQ1 markNeeds review
The complete Nyquist plot of the open-loop transfer function
of a feedback control system is shown in the figure. If
has one zero in the right-half of the
-plane, the number of poles that the closed-loop system will have in the right-half of the
-plane is 
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