GATE ECE 2017 Paper 2 — page 3

Questions 7–9 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 3 of 22

An LTI system with unit sample response

is a

Your answerChoose one option.

low-pass filter

high-pass filter

band-pass filter

band-stop filter

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The input

and the output

of a continuous-time system are related as

. The system is

Your answerChoose one option.

linear and time-variant

linear and time-invariant

non-linear and time-variant

non-linear and time-invariant

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An n-channel enhancement mode MOSFET is biased at

and

, where

is the gate-to-source voltage,

is the drain-to-source voltage and

is the threshold voltage. Considering channel length modulation effect to be significant, the MOSFET behaves as a

Your answerChoose one option.

voltage source with zero output impedance

voltage source with non-zero output impedance

current source with finite output impedance

current source with infinite output impedance

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2017 · Paper 2