GATE ECE 2022 Paper 1 — page 20

Questions 58–60 of 65. Imported answers require review unless explicitly marked reviewed.

Consider the circuit shown with an ideal OPAMP. The output voltage

is ________ V (rounded off to two decimal places).

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Consider the circuit shown with an ideal long channel

MOSFET (enhancement-mode, substrate is connected to the source). The transistor is appropriately biased in the saturation region with

and

such that it acts as a linear amplifier.

is the small-signal ac input voltage.

and

represent the small-signal voltages at the nodes A and B, respectively. The value of

is ________ (rounded off to one decimal place).

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The block diagram of a closed-loop control system is shown in the figure.

, and

are the Laplace transforms of the time-domain signals

, and

, respectively. Let the error signal be defined as

. Assuming the reference input

for all

, the steady-state error

, due to a unit step disturbance

, is ________ (rounded off to two decimal places).

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2022 · Paper 1