GATE ECE 2024 Paper 1 — page 6

Questions 16–18 of 65. Imported answers require review unless explicitly marked reviewed.

Let

and

be the unit vectors along

and

axes, respectively and let

be a positive constant. Which one of the following statements is true for the vector fields

and

Your answerChoose one option.

Both

and

are electrostatic fields.

Only

is an electrostatic field.

Only

is an electrostatic field.

Neither

nor

is an electrostatic field.

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In the circuit below, assume that the long channel NMOS transistor is biased in saturation. The small signal trans-conductance for the transistor is

. Neglect body effect, channel length modulation and intrinsic device capacitances. The small signal input impedance

is ______.

Your answerChoose one option.

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For the closed loop amplifier circuit shown below, the magnitude of open loop low frequency small signal voltage gain is 40.

All the transistors are biased in saturation. The current source

is ideal. Neglect body effect, channel length modulation and intrinsic device capacitances. The closed loop low frequency small signal voltage gain

(rounded off to three decimal places) is ____.

Your answerChoose one option.

0.976

1.000

1.025

0.488

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2024 · Paper 1