GATE IN exam:gate PYQs & Answers — Page 16

Questions 151–160 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 16 of 65

A linear transducer is calibrated for the ranges shown in the figure. The gain of the transducer is ______ mA/°C (rounded off to two decimal places).

Diagram for Instrumentation Engineering question 21

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Consider a filter defined by the difference equation

where

and

represent the input and output, respectively. If the magnitude response of the filter at

, the value of

is ______ (rounded off to two decimal places).

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Consider the circuit shown in the figure.

Diagram for Instrumentation Engineering question 23

The CMOS digital logic circuit has infinite input impedance. Assume the opamp is ideal. A 1.8 V Zener diode with a minimum Zener current of 2 mA is used. The corresponding maximum value of resistance

is ______ kΩ (rounded off to one decimal place).

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Figure shows an amplifier using an NMOS transistor. Assume that the transistor is in saturation with device parameters,

, threshold voltage

and

. Ignore the channel length modulation effect. The drain current of the transistor at the operating point is ______ μA (rounded off to nearest integer).

Diagram for Instrumentation Engineering question 24

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The number of complex multiplications required for computing a 16-point DFT using the decimation-in-time radix-2 FFT is ______ (in integer).

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matrix

with all real elements has eigenvalues

, and

. The value of

is ______ (rounded off to nearest integer).

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The Nyquist sampling frequency for

is ______ Hz (rounded off to nearest integer).

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The resistance of a 20 kΩ resistor is measured six consecutive times using an LCR meter. The first five readings are 19 kΩ, 18 kΩ, 23 kΩ, 21 kΩ and 17 kΩ. If the mean of the measurements and the true value are equal, the last reading is ________ kΩ (rounded off to nearest integer).

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Consider the readout circuit of a piezoelectric sensor shown in the figure. When the piezoelectric sensor generates a charge

, the resulting change in voltage

is −2 V. Then the corresponding change in the voltage

is ____ V (rounded off to nearest integer). Note: Assume all components are ideal.

Diagram for Instrumentation Engineering question 29

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The voltage applied and the current drawn by a circuit are

The average power absorbed by the circuit is ________ W (rounded off to nearest integer).

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GATE IN exam:gate PYQs

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