Electronics and Communication Engineering
2022 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE ECE 2022 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 34–36 of 65. Imported answers require review unless explicitly marked reviewed.
Question 34
Open questionECNAT1 markNeeds review
An ideal MOS capacitor (
-type semiconductor) is shown in the figure. The MOS capacitor is under strong inversion with
V. The corresponding inversion charge density (
) is 2.2
C/cm
. Assume oxide capacitance per unit area as
F/cm
. For
V, the value of
is _____
C/cm
(rounded off to one decimal place). 
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Open questionECNAT1 markNeeds review
A symbol stream contains alternate QPSK and 16-QAM symbols. If symbols from this stream are transmitted at the rate of 1 mega-symbols per second, the raw (uncoded) data rate is ______ mega-bits per second (rounded off to one decimal place).
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Open questionECMCQ2 marksNeeds review
The function
attains its minimum over the interval
at
________. (Here
is the natural logarithm of
.)Your answerChoose one option.
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