Instrumentation Engineering
2024 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE IN 2024 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 28–30 of 65. Imported answers require review unless explicitly marked reviewed.
Question 28
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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. 
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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).Log in to check the answer
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