Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Assistant Professor Electronics and Communication Engineering' And exam conducted in the year 2023. And Question paper code was '051/2023'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
051/23
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Consider the nMOS transistor in a 65 nm process with a nominal threshold voltage
of 0.3 V and a doping level of 8 x 1017 cm. The body is tied to the ground with a
substrate contact. How much does the threshold change at room temperature if the
source is at 0.6 V instead of 0 ?
A) 0.04 V B) 1.04V
C) 0.06 V 0) 1.06 ४
For an n-channel enhancement type MOSFET, if the source is connected at a higher
potential than that of the bulk (.6., Vgp > 0), the threshold voltage V+ of the MOSFET
will
A) Remain unchanged B) Decreases
C) Change polarity D) Increase
What is the minimum threshold voltage for which the leakage current through an
OFF transistor (Vgs = 0) is 10° times less than that of a transistor that is barely ON
(५७ = V,) at room temperature ifn = 1.5 ?
A) 234 mV B) 270 mV
C) 243 mv D) 207 mv
In CMOS inverter if Vi, < Vin < Vpp/2 then the following is behaviour of the inverter
A) p-MOS linear, n-MOS saturated
B) p-MOS linear, n-MOS linear
C) p-MOS saturated, n-MOS saturated
D) p-MOS saturated, n-MOS linear
The difficulty in achieving high doping concentration leads to
A
B
) Error in concentration
) Error in variation
C) Error in doping
D)
Distribution error