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Title: Determination of absolute zero temperature from thermistor voltage noise
Authors: Thaned Pruttivarasin
Mahidol University
Ministry of Education
Keywords: Physics and Astronomy
Issue Date: 1-May-2020
Citation: European Journal of Physics. Vol.41, No.3 (2020)
Abstract: © 2020 European Physical Society. We present a simple experiment to determine absolute zero temperature by measuring the Johnson noise of a thermistor. Using the thermistor itself as a temperature sensor, we measure the thermistor voltage noise at different temperatures by submerging the thermistor in hot and cold water contained in a thermally insulated cup. A linear fit of the data yields an absolute zero temperature of -274 ± 14 °C, agreeing with the accepted value. The experiment is simple enough to be performed at most universities as a part of an undergraduate experimental physics course.
ISSN: 13616404
Appears in Collections:Scopus 2020

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